Travis, William Penfield <br/><br/>
The theory of trade and protection 

 - Cambridge  Havard University Press  1964 
 - x,296p.  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Free trade and protections
<br/><br/><label>LC Class. No.: </label>HF1713.T7