TY  - BOOK
AU  - De,Anil Kumar
AU  - De, Arnab Kumar
TI  - Text book of environmental science
SN  - 9789381714546
U1  - 363.7 
PY  - 2014///
CY  - New Delhi
PB  - Scientific International
KW  - Environmental Science
KW  - Ecology
ER  -