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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| Formatua: | Liburua |
| Hizkuntza: | English |
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Washington, D. C.
The Brookings Institution, 1933
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| Saila: | Brookings Institution, Washington, D. C. Publications...Miscellaneous series
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| Gaiak: |