Hultgren, Thor <br/><br/>
American transportation in prosperity and depression / 
Thor Hultgren 
 - New York :  NBER ,  1948 
 - xxxiii, 397p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport and communications<br/>Business cycles<br/>Railways
<br/><br/><label>Dewey Class. No.: </label>385.073  / HUL