Schmalensee, Richard and Willig, Robert D. <br/><br/>
Handbook of industrial organization  / 

 - Amsterdam:  North-Holland,  1989 
 - 
 - Handbooks in Economics    v. 10 .
<br/><br/><label>ISBN: </label>0444704341 
<br/><br/><label>Dewey Class. No.: </label>338.6025  / Sc347.HI