@book{8565,
	author = {Fromm, Erich,  and Funk, Rainer.},
	title = {Del tener al ser },
	publisher = {Paidós, },
	year = {1991.},
	series = {Paidós studio ; },
	address = {Barcelona [etc.] : },
	edition = {[1ª ed.].}
}