TY  - BOOK
AU  - xx, 686 p.
AU  - Title
TI  - MANUAL of Instruction for Water Treatment Plant Operators
SN  - 2011052306
PY  - 1961///
CY  - New York
PB  - Health Education Service
KW  - Water
KW  - Purification
N1  - Includes index
ER  -