@book{1537,
	author = {ALFONZO AGUILAR, JAVIER FRANCISCO. and INSTITUTO TECNOLOGICO DE TUXTLA GUTIERREZ.},
	title = {MANUAL DE PRACTICAS DE LABORATORIO DE  INGENIERIA DE METODOS/ },
	publisher = {EL AUTOR},
	year = {1987},
	address = {TUXTLA GUTIERREZ, CHIAPAS: }
}