TY  - BOOK
AU  - Letterman,Raymond D.
ED  - American Water Works Association
TI  - Water quality and treatment: a handbook of community water supplies 
SN  - 0070016593
PY  - 1999///
CY  - New York
PB  -  McGraw-Hill
KW  - Water
KW  - Purification
KW  - United States
KW  - Water quality
KW  - Water-supply
N1  - Includes bibliographical references and index
ER  -