@book{2215,
	author = {Bontrager, Kenneth L. and Lampignano, John P.},
	title = {Handbook of radiographic positioning and techniques/},
	publisher = {Mosby Elsevier,},
	year = {2010.},
	address = {Saint Louis, Missouri:},
	edition = {7th ed.},
	note = {Includes Appendices.}
}