@book{21620,
	author = {KONECKI, Wacław},
	title = {Nowe materiały i techniki krycia dachów /},
	publisher = {"Arkady",},
	year = {1980.},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=21620}
}