Ryan, W. J. L. <br/><br/>
Price theory / 
by W. J. L. Ryan. 
 - London :  Macmillan,  1958. 
 - ix, 396 p. :  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics.