Critchley, T. A. <br/><br/>
Open systems : the reality  [Books]. 
T. A. Critchley and K. C. Batty. 
 - New York  Prentice Hall  1993 
 - Pages: 390 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0130307351  0.00 
<br/><br/><label>LCCN: </label>93000961 
<br/><br/><label>Subjects--Personal Names: </label><br/>Operating systems (Computers).<br/>OSI (Computer network standard).
<br/><br/><label>Dewey Class. No.: </label>QA/76.76.O63  / CRI