TY  - BOOK
AU  - Purohit, S.S..
AU  - Shammi , Q.J..
AU  - Agarwal, A.K..
TI  - A Text Book of Environmental Sciences: As Per UGU Unified Syllabus
U1  - 342.762 
PY  - 2004///
CY  - Jodhpur
PB  - Student edition
KW  - Environmental Sciences
KW  - G-Economics
ER  -