@book{7455,
	author = {Piotrowski, Witold},
	title = {Okrętowe kotły parowe /},
	publisher = {Politechnika Gdańska,},
	year = {1971.},
	address = {Gdańsk :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=7455}
}