TY  - BOOK
AU  -   Tiwari ,Vijaya kumar
TI  - A Textbook of  Environmental Studies
SN  - 9788184886405
U1  - 333.707 
PY  - 2014///
CY  - Mumbai: 
PB  - Himalaya Publishing House, 
KW  - Biodiversity  &Its conservation
KW  - Ecosystem
KW  - Environmental Science
KW  - Environmental Studies
ER  -