TY  - BOOK
AU  - Nath, Pashupati
AU  - Nath, Siddha
TI  - Environmental pollution Volume 1: conservation and planning 
SN  - 8185076863
U1  - 363.7363 22
PY  - 1990///
CY  - Allahabad
PB  - Chugh publication
KW  - Environmental engineering
KW  - Environmental pollution
N1  - Includes index
ER  -