TY  - GEN
AU  - Chitkara , M.G.
TI  - Encyclopaedia of Ecology, Environment and Pollution
SN  - 8170248809
U1  - 577.03 
PY  - 1998///
CY  - New Delhi
PB  - APH Publishing
KW  - Life Sciences
KW  - Ecology - Encyclopaedias
KW  -  Environment - Encyclopaedias
KW  - Pollution - Encyclopaedias
ER  -