Strategic management :  Concepts / 
David , Fred R. 
 - 12th ed. 
 - Toronto:  Pearson/ Prentice hall ,  2009. 
 - xxviii,336 p,: 
<br/><br/><label>ISBN: </label>9780136015697 
<br/><br/><label>LC Class. No.: </label>HD30.28  / .D38  2009