@book{125328,
	author = {Smith, Lee L.},
	title = {Cómo enseñar en la escuela sin grados},
	publisher = {Angel Estrada and Cía.},
	year = {[1974]},
	series = {Biblioteca de ciencias de la educación},
	address = {Buenos Aires},
	note = {Translation of : Teaching in a nongraded school.}
}