TY  - BOOK
AU  - Singh, Bharat and Gupta, D L.
TI  - Elements of public health engineering: : water supply and sanitary engineering
U1  - 628 
PY  - 1977///
CY  - Ludhiana
PB  - ; Katson Publshing House
KW  - Public Health Engineering
KW  - Sanitary Engineering
ER  -