Operating systems  

 - England:   Infotech information limited,   1972 
 - v, 563p.  
 - Infotech state of the art report 14 .
<br/><br/><label>ISBN: </label>8553-9050-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International computer 
<br/><br/><label>Subjects--Index Terms: </label>Computer Networks  
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3  / L1.1