TY  - BOOK
AU  - Gopal, Brij
TI  - Elements of Ecology
U1  - 577 
PY  - 1980///
CY  - New Delhi
PB  - Vikas Publishing House
KW  - General Stack
KW  - Natural Science & mathematics
KW  - Life science; Biology
KW  - EcologyZoology
ER  -