TY  - BOOK
AU  - Joshi, P.C. 
AU  - Joshi, Namita
TI  - A text book of environmental science
SN  - 9788131304563
U1  - 333.707 
PY  - 2009///
CY  - New Delhi 
PB  - APH Publishing House
KW  - Environmental science
KW  - Study and teaching
N1  - Includes glossary
ER  -