@book{27693,
	author = {KRUPA, Marek},
	title = {Elektrotechnika z elementami elektroniki :},
	publisher = {PC,},
	year = {1977.},
	address = {Częstochowa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=27693}
}