Gray, N. A. B. <br/><br/>
Introduction to computer systems 
N. A. B. Gray 
 - Sydney  Prentice-Hall of Australia  1987 
 - 409 p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>0134803868 
<br/><br/><label>LCCN: </label>86-22625 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers