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	1.	No cover image available Energy resources in Sri Lanka and supply options for the future by Herath, J.W Series: Science Education Series ; No.13 Language: Publication details: NARESA Colombo ; 1985 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	2.	No cover image available Mineral based industries of Sri Lanka by Herath, J.W Series: Science Education Series ; No.15 Language: Publication details: NARESA Colombo ; 1986 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	3.	No cover image available Mineral resources of Sri Lanka by Herath, J.W Series: Economic bulletin ; No.2 Language: Publication details: Geological Survey Department Colombo ; 1980 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	4.	No cover image available Mineral resources of Sri Lanka by Herath, J.W Series: Economic bulletin ; No.2 Language: Publication details: Geological survey Department Colombo ; 1975 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	5.	No cover image available Industrial clays of Sri Lanka Geology, mineralogy and appraisal for ceramics and other industries by Herath, J.W Series: Economic Bulletin No. 1 Language: Publication details: Geological Survey Department Colombo ; 1973 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	6.	No cover image available Economic geology of Sri Lanka by Herath, J.W Series: Natural Resources Series ; No.1 Language: Publication details: NARESA Colombo ; 1985 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)

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