@book{37580,
	author = {Hibbeler, Russel Charles.},
	title = {Mechanics of materials /},
	publisher = {Prentice Hall,},
	year = {1999.},
	address = {Upper Saddle River :},
	edition = {4th ed.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=37580}
}