TY  - BOOK
AU  - Dr. Sinha, Shradha 
TI  - A textbook of Environmental Studies
SN  - 8174733027
U1  - 33.707 Si64 
PY  - 2005///
CY  - New Delhi, India 
PB  - Virender Kumar Arya Publishers 
N1  - CAS; Bachelor of Science in Biology
ER  -