Bull, G.M. <br/><br/>
Time-sharing systems 
by G.M. Bull and S.F.G. Packham 
 - London  McGraw-Hill  1971 
 - 140p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time-sharing computer systems
<br/><br/><label>Dewey Class. No.: </label>I5371 B872