Ray, Sidney F. <br/><br/>
The lens in action / 
by Sidney F. Ray. 
 - New York :  Hastings House,  1976. 
 - 201 p.  :  ill.  ;  22 cm. 
<br/><br/>Bibliography: p. 194-196. 
<br/><br/><label>ISBN: </label>0803842961 
<br/><br/><label>LCCN: </label>76-43193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lenses, Photographic.