Duyvis, F. Donker <br/><br/>
Document reproduction services: their efficient organization and management 
by F. Donker Duyvis and M.F. Schippers 
 - Paris  Unesco  1961 
 - 23+p 
<br/><br/> reprinted from Unesco bulletin for libraries vol. 14, No. 6, Nov.-Dec. 1960 
<br/><br/><label>Dewey Class. No.: </label>I537 Un3d