@book{21480,
	author = {Piasta, Jerzy and Politechnika Świętokrzyska},
	title = {Laboratorium betonów /},
	publisher = {PŚ,},
	year = {1978.},
	series = {Skrypty Uczelniane Politechniki Świętokrzyskiej ;},
	address = {Kielce :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=21480}
}