Hay, Donald A. <br/><br/>
Industrial economics  theory and evidence / 
Donald A. Hay Derek J. Morris 
 - Oxford  Oxford University Press  1979 
 - 649p.  ill.  26cm 
<br/><br/><label>ISBN: </label>0198771126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial organization (economic theory)