Davis, William S.,  1943- <br/><br/>
Operating systems  a systematic view 
William S. David. 
 - 3rd ed. 
 - Reading, Mass.:  Addison-Wesley,  1987. 
 - 539 p. :   ill. ;   24 cm. 
<br/><br/><label>ISBN: </label>0201111853 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers).