Allisy-Roberts, Penelope.,  author. <br/><br/>
Farr's physics for medical imaging/ 
Penelope Allisy-Roberts & Jerry Williams. 
 - Seecond edition. 
 - Philadelphia, PA :  Saunders/Elsevier,   2008. 
 - viii, 207 pages :  illustrations ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780702028441 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical physics.<br/>Medical radiology.