TY  - BOOK
AU  - Powell,Sheppard T.
TI  - Water conditioning for industry
SN  - 0070505721
U1  - 621.184 
PY  - 1954///
CY  - New York
PB  - McGraw-Hill
KW  - Water
KW  - Purification
N1  - Includes index
ER  -