Longworth, Gordon. <br/><br/>
Realistic user requirements  [Books]. 
G. Longworth 
 - Manchester  NCC Publications  1983 
 - Pages: 92 
<br/><br/><label>ISBN: </label>0850126258  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computer software -- Development.
<br/><br/><label>Dewey Class. No.: </label>QA/76.76.D47  / LON