TY  - BOOK
AU  - Sengar, RS
AU  - Kumar,Amit
TI  - Environment science: question bank
SN  - 9789386478276
U1  - 628 
PY  - 2017///
CY  - New Delhi
PB  - CBS Publishers & Distributors Pvt Ltd.
KW  - Civil Engineering
KW  - Environment science
ER  -