Johns, Harold Elford <br/><br/>
The physics of radiology / 
By Harold Elford Johns and John Robert Cunningham 
 - 3rd ed. 
 - Springfield, Ill. :  Thomas,  1969 
 - 800 p. :   ill. ;   26 cm. 
<br/><br/> First published in 1953 under title: The physics of radiation therapy. 
<br/><br/><label>LCCN: </label>68-055941 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiology, Medical<br/>Radiotherapy<br/>Radiology