Llewellyn, Robert W <br/><br/>
Information systems 

 - Englewood Cliffs:  Prentice-Hall Inc.,   1976 
 - xiv, 347p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientific information
<br/><br/><label>Subjects--Index Terms: </label>Configurations Nature data base 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002:681.3  / L6