@book{6523,
	author = {Jones, Leo},
	title = {Progress to first cerititicate :},
	publisher = {Cambridge Univ. Press,},
	year = {1993.},
	series = {Cambridge Examintation Publishing},
	address = {Cambridge :},
	edition = {New ed.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=6523}
}