Managing open systems 
Freeman, Richard. 
 -  Kogsn Page Ltd.  1997 
 - xi,159 pages. 
 - Open and distance learning series .
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<br/><br/><label>ISBN: </label>0-7494-2056-1 
<br/><br/><label>Dewey Class. No.: </label>371.2 F87m 1997