TY  - GEN
AU  - Betz Laboratories.
TI  - Betz handbook of industrial water conditioning
SN  -  (pbk.)
AV  - TA405 .B39 2009
U1  - 660.284245  
PY  - 1962///
CY  - Pennsylvania
PB  - Betz laboratories, Inc
KW  - Water industry
KW  - Contorl water analysis
N1  - Includes index
ER  -