@book{3959,
	author = {SZYMICZEK, Kazimierz},
	title = {Zbiór zadań z teorii grup /},
	year = {1989.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=3959}
}