Johns, Harold Elford. <br/><br/>
The physics of radiology / 
by Harold Elford Johns and John Robert Cunningham. 
 - 3rd ed. 
 - Springfield, Ill. :  Charles C. Thomas,  1980. 
 - xi, 800 p. :  ill. 
 - American lecture series ;  no. 932 .
<br/><br/> First published in 1953 under title: The physics of radiation therapy. 
<br/><br/><label>ISBN: </label>0398030073 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiology, Medical.<br/>Radiotherapy.<br/>Radiology.