Watson, Donald Stevenson. <br/><br/>
Price theory and its uses / 
Donald S. Watson, Mary A. Holman. 
 - 4th ed. 
 - Boston :  Houghton Mifflin,  1977. 
 - xviii, 445 p. :  graphs ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0395244226 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics.<br/>Prices.