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221.
Transnational environmental policy aspects and prospects by
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Publication details: East-West Center Hawaii ; 1977
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

222.
Ecological surveys from space
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Publication details: National Aeronautics and Space Administration Washington ; 1970
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

223.
Summer island:penobscot country by
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Publication details: Sierra Club San Francisco
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

224.
The economics of clean air report of the administrator of the environmental protection agency to the congress of the United States
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Publication details: U.S.Government Printing Office Washington ; 1971
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

225.
Sri Lanka directory of environmental NGO's by
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Publication details: Sri Lanka Environmental Journalists Forum (SLEJF) Kotte 2004
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

226.
Directory of environmental expertise in Sri Lanka 2004 by
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Publication details: Central Environmental Authority Battaramulla 2004
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

227.
One sun two worlds an ecological journey
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Publication details: Oxford & IBH Publishing Co. Pvt. Ltd New Delhi ; 2004
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

228.
Environmental awareness and protection by
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Publication details: Deep and Deep Publications Pvt. Ltd. New Delhi ; 2004
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

229.
Environmental sciences a new approach by
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Publication details: Agrobios Jodhpur ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

230.
Global environment management by
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Publication details: Aavishkar publisher Jaipur ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

231.
Ecological crisis & management by
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Publication details: Daya publishing N.D. ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

232.
Industrial poluution problems and solutions by
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Publication details: Daya Pulishing New Delhi ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

233.
ස්වභාවික සම්පත් කළමනාකරණය සඳහා ගුරු උපදෙස් (Swabhawika Sampath Kalamanakaranaya Sandaha Guru Upades) by
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Publication details: Colombo 10 Central Environmental Authority ; 1997
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

234.
ජාතික පාරිසරික ක්‍රියාකාරි සැලැස්ම (Jathika Paarisarika Kriyakari Salasma) (1998 - 2001) by
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Publication details: Colombo Ministry Of Forestry & Environment ; 1998
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

235.
236.
පාරිසරික භූගෝල විද්‍යාව (Parisarika boogola vidyawa) 1 කොටස (1 kotasa) by
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Publication details: Matara Author ; 1995
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

237.
Environmental Protection and Development Emerging Issues,Reforms and Strategies by
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Publication details: Deep & Deep publications New Delhi ; 2005
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

238.
A-Z of Corporate Environmental Management by
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Publication details: Earthscan London ; 2005
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

239.
Planning for a Sustainable Environment A Report by the Town and Country Planning Association by
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Publication details: Earthscan London ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

240.
Environmental Management in Organizations The IEMA Handbook by
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Publication details: Earthscan London ; 2006
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

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