The American transportation problem, prepared for the National transportation committee Paul T. David, Lloyd C. Hoeltzel, Charles L. Dearing...[and others].
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| Materialtyp: | Bok | 
| Språk: | English | 
| Publicerad: | Washington, D. C.
          The Brookings Institution, 1933 | 
| Serie: | Brookings Institution, Washington, D. C. Publications...Miscellaneous series | 
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