TY  - BOOK
AU  - American water works Association
TI  - Journal of the american water works association
T2  - 39
U1  - 628.1 
PY  - 1947///
PB  - American water works association
KW  - Bacteriology
KW  - Water supply | Water treatment--AWWA
N1  - Water; Water Treatment; Environmental; Public Health; AWWA
ER  -