@book{2087,
	author = {Johns, Harold Elford. and Cunningham, John Robert.},
	title = {The physics of radiology /},
	publisher = {Charles C. Thomas,},
	year = {1983.},
	address = {Springfield, Ill., U.S.A. :},
	edition = {4th ed.},
	note = {First published in 1953 under title: The physics of radiation therapy.}
}