@book{169806,
	author = {Yamamoto, Sho L. and ebrary, Inc.},
	title = {Periodontal disease},
	publisher = {Nova Science,},
	year = {c2011.},
	series = {Dental science, materials and technology},
	address = {Hauppauge, NY :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10661694}
}