Strategic management : an integrated approach 
Hill , Charles W.L. 
 - Fourth edition. 
 -  Houghton Mifflin Company.  1998 
 - xxi, 540 pages. 
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<br/><br/><label>ISBN: </label>0-395-85184-X 
<br/><br/><label>Dewey Class. No.: </label>658.4012 H55s 1998