TY  - BOOK
AU  - Negi, Vrinda
AU  - Singh, Vir  
TI  - Ecology environment and agriculture (HB)
SN  - 9788176223393
U1  - 628.03 
PY  - 2015///
CY  - New Delhi
PB  - Bio Tech Books
KW  - CE
KW  - Environmental science
ER  -