@book{38375,
	author = {O'Brien, William J.},
	title = {Dental materials and their selection /},
	publisher = {Quintessence Pub. Co.,},
	year = {c2008.},
	address = {Hanover Park, IL :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0815/2008014998.html}
}