TY  - BOOK
AU  - Asthana, D K
AU  - Asthana,Meera
TI  - Textbook Of Environmental Studies: Undergraduate Students
SN  - 8121927641
U1  - 333.714 
PY  - 2012///
CY  -  New Delhi
PB  - S Chand & Company
KW  - Environmental Studies
KW  -  Environmental Science
ER  -