@book{1604,
	author = {CASTILLEJOS GALLEGOS, CLARA LUZ. and INSTITUTO TECNOLOGICO DE TUXTLA GUTIERREZ.},
	title = {INSTRUCCIONES PRACTICAS PARA  SERVOMECANISMOS./ },
	publisher = {EL AUTOR},
	year = {1987},
	address = {TUXTLA GUTIERREZZ, CHIS.: }
}