Verry, H. R. <br/><br/>
Microcopying methods / 
H.R. Verry ; revised by Gordon H. Wright. 
 - [London]:   The Focal Press,   [1967].  
 - 175 p. :  ill. ;  25 cm. 
 - The Focal library .
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microfilms<br/>Photocopying
<br/><br/><label>Dewey Class. No.: </label>686.4