Perreault, Jean M. <br/><br/>
an introducton to UDC 
/ by  Jean M. Perreault 
 - London:  Clive Bingley Ltd.;  1969. 
 - 111p. 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>025.43  / PER/A