TY  - BOOK
AU  - Verma, P. S.
AU  - Agarwal, V. K.
TI  - Environmental Biology (Principles of Ecology)
SN  - 9788121908597
U1  - 577.07 
PY  - 2023///
CY  - New Delhi
PB  - S. Chand
KW  - Environmental Science
ER  -