TY  - BOOK
AU  - Sinha,R.K.
TI  - Environmental Science: definition, desalination, composting 
T2  - World Environmental Science Series ; no.002
SN  - 8171693075
U1  - 628 21
PY  - 1994///
CY  - New Delhi : 
PB  - Commonwealth Publishers, 
ER  -