@book{617,
	title = {Deutsch :},
	publisher = {Verl. Enzyklopädie,},
	year = {1977.},
	address = {Leipzig :},
	edition = {[7., unveränd Aufl.].},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=617}
}