@book{1972,
	author = {KLONOWICZ, Zdzisław. and ZURZYCKI, Zdzisław.},
	title = {Teoria obwodów.},
	year = {1983.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=1972}
}