Silvester, Peter, P. <br/><br/>
UNDC system guidebook 

 - 2nd ed. 
 - Delhi: Narosa  1991 
 - xii,334p.  22 cm. 
<br/><br/><label>ISBN: </label>8185198160 
<br/><br/><label>Dewey Class. No.: </label>001.6425,sil  / _