TY  - BOOK
AU  - Trivedi, R.P.
AU  - Raj, Gurdeep
TI  - Encyclopaedia of Environmental Sciences :  Environmental Water and Soil Analysis Vol. 15
SN  - 8171582613
U1  - 304.203 
PY  - 1992///
CY  - New Delhi
PB  - Akashdeep Publishing House , 
KW  - Human Ecology
ER  -