Freeman, Peter. <br/><br/>
Software perspectives : the system is the message / 
Peter Freeman 
 - Massachusetts :  Addison-Wesley,  1987 
 - 294 p. :  illus 
<br/><br/><label>ISBN: </label>0201119692 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Software.
<br/><br/><label>Dewey Class. No.: </label>621.C6425  / F859S