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
AV  - QD142 A72 1989
PY  - 1989///
CY  - Washington, D.C.
PB  - American Public Health Association
KW  - Agua
KW  - Análisis
KW  - Aguas residuales
ER  -