Hawken, William R. <br/><br/>
Copying methods manual / 
William R. Hawken. 
 - Chicago :  Library Technology Program, American Library Association,  1966. 
 - xv, 375 p. :  ill., facsims., music. 
 - LTP publications ;  no. 11 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copying processes.