@book{393,
	author = {Bozzini de Marrazzo, María Cristina and Marrazzo, Teófilo Mario.},
	title = {Guía de educación física para la escuela primaria : },
	publisher = {La Obra, },
	year = {impresión 1973.},
	address = {Buenos Aires : },
	edition = {3a. ed.}
}