TY  - BOOK
AU  - Gurcharan Singh
AU  -  Inderjeetkaur Sethi  M.S Sethi
TI  - Topics and terms in environmental science Vol 1
SN  - 81-7169-178-1
U1  - 363.7 
PY  - 1992///
CY  - New Delhi
PB  - Common Wealth Publishers
N1  - Gurcharan Singh; Inderjeetkaur Sethi & M.S Sethi: Topics and terms in environmental science Vol 1.  New Delhi.  Common Wealth Publishers, 1992. 81-7169-178-1--(363.7SIN)
ER  -