Smith, Robb <br/><br/>
Amphoto guide to filters / 
Robb Smith, George Catlin 
 - Garden City, N.Y. :  Amphoto,  1979 
 - 160 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>081742458X 0817421327 
<br/><br/><label>LCCN: </label>78-21937 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography--Light filters