@book{869,
	author = {Konopka, Gisela  and Redi, Fritz },
	title = {Trabajo de grupo en la institución / },
	publisher = {Euramérica, },
	year = {1973},
	address = {Madrid : },
	edition = {1 ed.},
	note = {Bibliografía : p. 247-250}
}