@book{1971,
	author = {TOVILLA HERNANDEZ, FIDEL. and INSTITUTO TECNOLOGICO DE TUXTLA GUTIERREZ.},
	title = {EXCITACION ELECTRONICA Y REGULACION DE  VOLTAJE EN GENERADORES DE GRAN POTENCIA/ },
	publisher = {EL AUTOR},
	year = {1985},
	address = {TUXTLA GTZ., CHIS.: }
}