@book{83185,
	author = {Pansza, Margarita. and Pérez Juárez, Esther Carolina},
	title = {Operatividad de la didáctica  / Margarita Pansza González, Esther Carolina Pérez Juárez, Porfirio Morán Oviedo.},
	publisher = {:  Gernika},
	year = {2009},
	series = {Ciencias sociales},
	address = {México},
	edition = {12a ed.}
}