Mason, Donald <br/><br/>
Document reproduction in libraries / 
by Donald Mason 
 - London :  Association of Assistant Librarians,  1968 
 - 149 p. :  8 plates, illus., facsim. ;  23 cm. 
<br/><br/>Bibliography : p.144. 
<br/><br/><label>ISBN: </label>900092017o 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copying processes