Ryan, William James Louden <br/><br/>
Price theory 
/ W. J. L. Ryan 
 - London  MacMillan  1958 
 - xvi, 396 p. : graphs ; 23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics