TY  - GEN
AU  - Yadav, P. R. 
AU  - Mishra, Shubhrata R.
TI  - Environmental biology
SN  - 8171417566
U1  - 577 
PY  - 2004///
CY  - New Dilhi
PB  - Discovery Publishing
KW  - Ecology
KW  - Biology
ER  -