@book{7189,
	author = {Leyko, Jerzy and Szmelter, Jan.},
	title = {Zbiór zadań z mechaniki.},
	year = {1961.},
	address = {Łódź,},
	edition = {Wyd. 2.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=7189}
}