TY  - BOOK
AU  - Singh, H. R.
TI  - Introduction to animal ecology and environmental biology
U1  - 591.7   
PY  - 1993///
CY  - Jalandhar
PB  - Shoban Lal Nagin Chand & Co
KW  - Zoology
KW  - Animal ecology
KW  - Ecosystem
KW  - Estuarine ecology
ER  -