@book{17257,
	author = {Instituto Nacional de Normalización (INN).},
	title = {Uniones y accesorios para tubos de PVC rígido para instalaciones sanitarias de alcantarillado domiciliario - Requisitos = Unplasticized polyvinyl chloride (PVC) pipes and fittings for soil and waste discharge systems inside buildings - Requirements /},
	publisher = {Instituto Nacional de Normalización (INN),},
	year = {1992.},
	address = {Santiago :},
	edition = {1a ed.}
}