@book{73224,
	author = {Pansza González, Margarita and Pérez Juárez, Esther Carolina},
	title = {Operatividad de la didáctica },
	publisher = { : Gernika},
	year = { , 2009},
	series = {Ciencias Sociales,12},
	address = {México},
	edition = {12a. edición}
}