TY  - GEN
AU  - Tyagi, Anil
AU  - Singh, Virendra
TI  - Trueman's specific series UGC NET/SET environmental science: environmental Science
SN  - 9788189301446
PY  - 2014///
CY  - New Delhi
PB  - Danika 
KW  - UGC NET - environmental science
ER  -