@book{4338,
	author = {PIEŃKOWSKI, Kazimierz and TUMEL, Anna},
	title = {Ogrzewnictwo.},
	year = {1990.},
	address = {Białystok,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=4338}
}