TY  - BOOK
AU  - Sengar, RS
AU  - Kumar, Amit
TI  - Environment Science: question bank 
SN  - 978-93-86478-27-6
U1  - R 628(SEN)ENV 
PY  - 2017///
CY  - Kolkata
PB  - CBS publishers & distributors pvt ltd
KW  - ENVIRONMENTAL STUDIES
ER  -