TY - BOOK ED - American Psychological Association (Washington, DC) ED - American Water Works Association TI - Standard methods for the examination of water and sewage AV - QD 142 A5 PY - 1936/// CY - New York PB - [s.n.] KW - AnĂ¡lisis del agua KW - AnĂ¡lisis de aguas residuales ER -