Rijsbergen C J Van <br/><br/>
Informational reterieval 

 - London  Butterworths         1975 
<br/><br/><label>Standard No.: </label>257,107 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>2:97, L51;1