@book{18828,
	author = {SANGLERAT, G.},
	title = {The penetrometer and soil exploration :},
	publisher = {Elsevier,},
	year = {1972.},
	series = {Developments in Geotechnical Engineering ;},
	address = {Amsterdam :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=18828}
}