TY  - BOOK
ED  - American Public Health Association
ED  - American Water Works Association
ED  - Water Pollution Control Federation
TI  - Standard methods: for the examination of water and wastewater / 
SN  - 087553161X
U1  - 628.16 
PY  - 1989///].
CY  - Washington: 
PB  - American Public Health Association, 
KW  - Water
KW  - Analysis
KW  - Sewage
N1  - Includes bibliographical references and index
ER  -