Douglas, S. W. <br/><br/>
Principles of veterinary radiography / 
by S. W. Douglas and H. D. Williamson. 
 - 3d ed. 
 - London :  Williams & Wilkins ,  1972 
 - xi, 266 p. :  ill.  26 cm. 
<br/><br/>Bibliography: p. 249. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Veterinary radiology.<br/>Veterinary radiography.
<br/><br/><label>Dewey Class. No.: </label>636.089607572