Travis, William Penfield <br/><br/>
The theory of trade and protection / 
William Penfield Travis 
 - Cambridge :  Harvard University Press ,  1964 
 - x, 296 p. :  ill. ;  20 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> International economics<br/>Protectionism<br/>Free trade<br/>Commercial policy
<br/><br/><label>Dewey Class. No.: </label>382  / TRA