@book{297,
	author = {Otto, Franciszek and Otto, Edward},
	title = {Zbiór zadań z geometrii wykreślnej :},
	year = {1956.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=297}
}