TY  - BOOK
AU  - Purohit,S.S.
AU  - Agrawal,A.K.
AU  - Shammi,Q.J.
TI  - A textbook of environmental sciences: as per unified UDGC syllabus 
SN  - 8188826146
PY  - 2004///
CY  - Jodhpur
PB  - Agrobios
KW  - Environmental sciences
KW  - sears
N1  - Glossary
ER  -