TY  - BOOK
AU  - Trivedi, P. R. and Raj, Gurdeep
TI  - Environmental biology
SN  - 817158232X
U1  - 574.52 
PY  - 1992///
CY  - New Delhi
PB  - ; Akashdeep Publishing House
KW  - Biology
KW  - Ecology
KW  - Environmental Biology
ER  -