Fernando, M.J.B.
Environmental Problems (in sinhala)
- NARESA Colombo
- 45 lk
- Marine pollution Mangroves Green house Effect Acid Rains Muthurajawela Water Pollution Ozone Layer Sri Lanka
- Science Education Series No.33 .
http://thakshana.nsf.ac.lk/slstic/NA-126/NA_126.pdf
= Fernando, M.J.B.
M
B
p939
NA-126
Education
37