TY  - BOOK
AU  - Tyagi, Anil 
AU  - Singh, Virendra
TI  - UGC NET /SET Environmental Science
SN  - 8189301446
U1  - 333.707 6 
PY  - 2015///
CY  - New Delhi
PB  - Danika Publishing Company
KW  - Question Bank
N1  - Includes Old Question Paper
ER  -