TY  - BOOK
AU  - Gupta,B.R.N.
TI  - Design aids for public health engineers
SN  - 0470202513
AV  - TD353 .G87 1986
U1  - 628�19 
PY  - 1986///
CY  - New York
PB  - Wiley
KW  - Water-supply engineering
KW  - Sanitary engineering
KW  - Nomography (Mathematics)
N1  - Two thin transparent strips with center lines inserted in pocket
ER  -