TY  - BOOK
AU  - Trivedi, P.R.
AU  - Raj, Gurdeep
TI  - Encyclopaedia of Environmental Sciences : Management of Environmental Education and Research  Vol. 19
SN  - 8171582745
U1  - 304.203 
PY  - 1992///
CY  - New Delhi : 
PB  - Akashdeep Publishing House, 
KW  - Environmental Science
ER  -