TY  - BOOK
AU  - Joshi, P. C & Joshi, Namita 
TI  - A text book of environmental science : : based on UGC prescribed core module syllabus for the under graduate students of all disciplines 
U1  - 333.7 JOS 
PY  - 2011///
CY  - New Delhi
PB  - A.P.H Publishing  Corporation
ER  -