TY  - BOOK
AU  - Purohit,S.K
TI  - Chemical & Biological Methods of Water & Air Pollution Control: A Practical Hygiene Manual/ (Acc: 1562): A Parctical Hygiene Manual
U1  - 669 PUR 22
PY  - 1985///]
CY  - India
PB  - Agro Botanical Publishers
KW  - Water and Air
ER  -