Water, sanitation and hygiene standards for schools in low-cost settings / 
Water, sanitation and hygiene standards for schools in low-cost settings / 
 - Geneva :  World Health Organization 
 - ix, 55 p. 
<br/><br/><label>ISBN: </label>978-92-4-1547796 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ABASTECIMIENTO DE AGUA<br/>AGUA POTABLE<br/>CALIDAD DEL AGUA POTABLE<br/>PROMOCION DE LA SALUD<br/>SANEAMIENTO<br/>SERVICIOS DE SALUD ESCOLAR