Hawken, William R. <br/><br/>
Copying methods manual 

 - Chicago  American Library Association  1966 
 - 375p. 
<br/><br/>Includes index<br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photocoping machines<br/>Copying processes - Handbooks, manuals, etc<br/>Copying - Methodology
<br/><br/><label>Dewey Class. No.: </label>686.4 HAW-;