TY  - BOOK
AU  - KUMAR (H D).
TI  - Modern concepts of ecology. Rev Ed.7
SN  - 0 7069 8676 8
U1  - 574.5 KUMM 
PY  - 1994///
CY  - ND
PB  - Vikas publishing house pvt ltd
KW  - Ecology
ER  -