TY - BOOK AU - Bridgwater,Laura ED - American Public Health Association ED - American Water Works Association ED - Water Environment Federation TI - Standard methods for the examination of water and wastewater SN - 0875530478 AV - QD142 S72 2012 PY - 2012/// CY - Washington, D.C. PB - American Public Health Association KW - Agua KW - AnĂ¡lisis KW - Aguas residuales ER -