@book{7281,
	author = {PINTO SANCHEZ, HIPOLITO EFRAIN. and INSTITUTO TECNOLOGICO DE TUXTLA GUTIERREZ.},
	title = {MEJORAMIENTO DEL SERVICIO DE LA TIENDA   ISSSTE NO. 224 MEDIANTEEL CICLO PHVA/ },
	publisher = {EL AUTOR},
	year = {1999},
	address = {TUXTLA GTZ., CHIS.: },
	note = {BIBLIOGRAFIA: P. [48].}
}