@book{4602,
	author = {SZAJNA, Janusz and ADAMSKI, Marian},
	title = {Turbo Prolog :},
	year = {1991.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=4602}
}