@book{1609,
	author = {CAMACHO CAMACHO, CLARA SILVIA. and INSTITUTO POLITECNICO NACIONAL (MEXICO).},
	title = {ELABORACION DE HILO DE POLIPROPILENO PARA  LA INDUSTRIA TEXTIL/ },
	publisher = {EL AUTOR},
	year = {1975},
	address = {MEXICO: }
}