Travis, William Penfield <br/><br/>
The theory of trade and protection / 
William Penfield Travis 
 - Cambridge Mass. :  Harvard University Press,  1964 
 - x, 296 p. :  ill. ;  22 cm. 
 - Harvard economic studies ;  v. 121 .
<br/><br/> Includes index  Library has 2 cops. 
<br/><br/><label>ISBN: </label> USD 6.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protectionism<br/>Free trade<br/>Commercial policy
<br/><br/><label>Dewey Class. No.: </label>337