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Evaluating R & D impacts: methods and practice 

 - Boston  Kluwer Academic  1993 
 - xvi,304p, 22cm 
<br/><br/> sd 
<br/><br/><label>ISBN: </label>0792393252 
<br/><br/><label>Dewey Class. No.: </label>658.57,  / D, eva