Baumol, William J <br/><br/>
Economics, principles, and policy 
/ by William J. Baumol et.al. 
 - 6th ed. 
 - New York:  The Dryden press,  1979. 
 - xxxix,999p. 
<br/><br/><label>ISBN: </label>0030989272 
<br/><br/><label>Dewey Class. No.: </label>330   / BAU/E