Public aids to transportation...  Published after expiriation of Emergency railroad transportation act, 1933. Section of research, Federal coordinator of transportation. 

 - Washington,  U.S. Govt. print. off.,  1938-40. 
 - 4 v.  illus.  29 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics, Commercial--United States.<br/>Inland navigation--United States.<br/>MCE<br/>Railroads--United States.<br/>Transportation--United States.<br/>Transportation, Automotive--United States.
<br/><br/><label>Dewey Class. No.: </label>385  / PUB