@book{8139,
	author = { Nield-Gehrig, Jill S.  and  Willmann, Donald E.},
	title = { Foundations of periodontics for the dental hygienist / .},
	publisher = { Lippincott Williams & Wilkins,},
	year = { c2008.},
	address = { Philadephia : },
	note = {Rev. ed. of: Foundations of periodontics for the dental hygienist / Jill S. Nield-Gehrig, Donald E. Willmann [editors}
}