TY  - BOOK
AU  - Trivedi, P. R. and Raj, Gurdeep
TI  - Environmental ecology
SN  - 8171582435
U1  - 577 
PY  - 1992///
CY  - New Delhi
PB  - ; Akashdeep Publishing House
KW  - Ecology
KW  - Environmental Ecology
ER  -