TY  - BOOK
AU  - Khullar, D.R.
AU  - Rao, J.A.C.S.
TI  - Environment: for civil services (prelins & mains) and other competitive examinations
SN  -  93-392-2498-1
U1  - 375.0083076 
PY  - 2016///
CY  - New Delhi
PB  - McGraw Hill Education
KW  - ENVIRONMENTAL SCIENCE
KW  - EXAMINATIONS, QUESTIONS, ETC
ER  -