TY  - BOOK
ED  - World Health Organization
TI  - Guidelines for Drinking Water Quality 1
SN  - 9241541687
U1  - 628.162 
PY  - 1984///
CY  - Geneva : 
PB  - World Health Organization, 
KW  - Drinking Water
N1  - NN; v. 1. Recommondations
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/924-154168-7.pdf
ER  -