Heck, Harold J. <br/><br/>
Foreign commerce 
by Harold J. Heck 
 - New York  McGraw- Hill Book Company  1953 
 - xii, 512p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foreign-- Commerce
<br/><br/><label>Dewey Class. No.: </label>T39 H335