TY  - GEN
AU  - kumar, P.
TI  - Biological control of environmental pollution
SN  - 8176251658
U1  - 577.27 
PY  - 2000///
CY  - New Dilhi
PB  - Sarup & Sons
KW  - Effects of humans on ecology
KW  - Ecology
KW  - Specific factors affecting ecology
ER  -