TY  - BOOK
AU  - Deswal, Surinder
AU  - Deswal, Anupama.
TI  - Basic Course in Environmental Studies
U1  - 628 
PY  - 2005///
CY  - Delhi
PB  - Dhanpat Rai
KW  - Environmental Studies
KW  - Civil
N1  - Civil
ER  -