TY  - BOOK
AU  - Gurcharan Singh
AU  -  Inderjeet Kaur Sethi  M.S. Sethi
TI  - Topics and terms in environmental Science Vol 2
U1  - 363.7 
PY  - 1992///
CY  - New Delhi
PB  - Common Wealth Publishers
N1  - Gurcharan Singh; Inderjeet Kaur Sethi & M.S. Sethi: Topics and terms in environmental Science Vol 2.  New Delhi.  Common Wealth Publishers, 1992.--(363.7SIN)
ER  -