@book{50714,
	author = {Freud, Sigmund},
	title = {Der Witz und seine Beziehung zum Unbewussten /},
	publisher = {Fischer Bücherei,},
	year = {1958.},
	series = {Bücher des Wissens},
	address = {Frankfurt am Main :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=50714}
}