TY  - BOOK
AU  - Chitkara, M. G.,
TI  - Encyclopaedia of Ecology, Environment and Pollution Vol. 14
SN  - 8170248809
U1  - 551.503 
PY  - 1998///
CY  - New Delhi
PB  - APH Pub.
KW  - Encyclopaedia
ER  -