Encyclopedia of information systems and services  

 - 3th ed. 
 - Detroit:   Gale Research Company,  1978 
 - 1030p. 
<br/><br/><label>ISBN: </label>0-8103-0940-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia
<br/><br/><label>Subjects--Index Terms: </label>Information  Information storage  
<br/><br/><label>Universal Decimal Class. No.: </label>D 002.61(71-73)  / L1;L8