TY  - BOOK
ED  - P.s. Verma & V.k. Agarwal
TI  - Environmental Biology: principles of ecology
SN  - 8121908590
AV  - QH 308.5 .V47 2013
PY  - 1983///
CY  - India
PB  - S.chand & company pvt.ltd
KW  - Biology
ER  -