Johns, Harold Elford. <br/><br/>
The physics of radiology / 
Harold Elford Johns and John Robert Cunningham. 
 - 4th ed. 
 - Springfield, Ill., U.S.A. :  Charles C. Thomas,  1983. 
 - xix, 796 p. :  ill. ;  26 cm. 
<br/><br/> First published in 1953 under title: The physics of radiation therapy.  Includes indexes. 
<br/><br/>Bibliography: p. 760-778. 
<br/><br/><label>ISBN: </label>0398046697 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical radiology.<br/>Radiology.<br/>Health physics.
<br/><br/><label>LC Class. No.: </label>R895  / .J6 1983 
<br/><br/><label>National Library of Medicine Call No.: </label>WN 110 J65p