Chambers, Harry T. <br/><br/>
Copying, duplication and microfilm :  systems and equipment for use in business and administration / 
Harry T. Chambers. 
 - London :  Business Books,  1970. 
 - 151 p. : ill. 
<br/><br/><label>ISBN: </label>0220992169 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copying processes.<br/>Copying.<br/>Photocopying.<br/>Microphotography.