Transportation study.  hearings before subcommittee, 81st Congress, 2d session, on transportation problems, Feb. 27-Mar. 3, 1950.  Pt. 1 : 

 - [Washington, D.C.],  1950. 
 - v, 1-346 p. :  ill., 8 pl. 
<br/><br/> Distribution made by issuing office.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--Research--United States.
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.IN 8/4:T 687/16/PT.1