@book{12399,
	author = {Pansza Gonzalez, Margarita and Moran Oviedo, Porfirio},
	title = {Operatividad de la didactica  /},
	publisher = {Gernika, },
	year = {1987},
	address = {México  },
	edition = {2a ed.},
	note = {Incluye índice}
}