TY  - BOOK
AU  - Verma, P. S.
AU  - Agarwal, V. K.
TI  - Environmental biology: principles of ecology
SN  - 9788121908597(pbk.)
U1  - 577 23
PY  - 2010///
CY  - New Delhi
PB  - S Chand and Company Ltd.
KW  - Biology
KW  - Ecology
N1  - It includes glossary biblioigraphy and index
ER  -