Commercial language systems 
/ Infotech Information  
 - London:   Infotech Informatio,   1974 
 - viii, 701p.  
 - Infotech state of the art report   19 .
<br/><br/><label>ISBN: </label>8553-9180-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer systems 
<br/><br/><label>Subjects--Index Terms: </label>Commercial language  
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3  / L1.1.24