Barrett, W. J. <br/><br/>
35mm Microfilming for drawing offces 
W. J. Barrett                                              
 - London  Focal Press  1970 
 - 135p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microphotography<br/>Photography
<br/><br/><label>Universal Decimal Class. No.: </label>778.14  / BAR