@book{419,
	author = {Robinson, Debbie and  Bird, Doni L.},
	title = {Essentials of Dental Assisting /},
	publisher = {Elsevier,},
	year = {2017.},
	address = {St. Louis, Missouri :},
	edition = {6 ed. --},
	url = { http://evolve.elsevier.com/Robinson/essentials}
}