TY  - BOOK
AU  - PUROHIT,S.K.
AU  - 
TI  - Chemical and biological methods of water and air pollution control : 
U1  - 628.168/PUC 
PY  - 0000///Agro Botanical.
PY  - 1985///
CY  - India 
KW  - Water - Pollution
KW  - Water and Air Pollution
N1  - Includes index and bibliography
ER  -