@book{6487,
	author = {HERNANDEZ MARTINEZ, HUMBERTO. and INSTITUTO TECNOLOGICO DE TUXTLA GUTIERREZ.},
	title = {PROTOCOLOS DE NIVEL DE SESION/ },
	publisher = {EL AUTOR},
	year = {1998},
	address = {TUXTLA GTZ., CHIS.: },
	note = {BIBLIOGRAFIA: P. 55.}
}