@book{12483,
	author = {DROOYAN, Irving and HADEL, Walter},
	title = {Elementary algebra :},
	publisher = {John Wiley and Sons,},
	year = {1969.},
	address = {New York :},
	edition = {2 ed.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=12483}
}