TY  - BOOK
AU  - Purohit, S S and others,
TI  - Text Book of Environmental Sciences : As Per UGC Unified Syllabus
SN  - 8188826146
U1  - 551 
PY  - 2004///
CY  - Jodhpur
PB  - Student Edition
KW  - Environmental Sciences
KW  - Geology, hydrology & meteorology
ER  -