@book{40629,
	author = {Ladero Quesada, Miguel Ángel, and Consejo Superior de Investigaciones Científicas (España) :},
	title = {Cuadernos de Historia :},
	publisher = {Instituto Jeronimo Zurita,},
	year = {1977.},
	series = {Cuadernos de Historia},
	address = {Madrid :}
}