TY  - BOOK
AU  - Kumar, A
TI  - A Textbook of Environmental Science
SN  - 817648590X
SN  - 978817648
U1  - 628KUM 
PY  - 2014///
CY  - New Delhi
PB  - Scientfic International
KW  - Environmental sciences
KW  - Biodiversity
KW  - Human
ER  -