Showing items related by title, author, creator and subject.

• Guías para la calidad del agua potable : Criterios relativos a la salud y otra información de base 

  Pan American Health Organization (1987)
• CE124.R5: Persistent organic pollutants 

  Executive Committee of the Directing Council, 124 (Washington, D.C; Pan American Health Organization, 1999-06)
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  Marco legislativo del suministro de agua en México 

  Santos Guzmán, Jesús; Guerrero Medrano, Laura; Reyna Caamaño, Ruth; Mejía Velásquez, Gerardo (2009)