Research priorities in transportation and energy a circular
| Erakunde egilea: | |
|---|---|
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | Washington, D.C.
          Transportation Research Board, National Research Council
    
        [1987] | 
| Saila: | Transportation Research Circular
              Number 323 | 
| Gaiak: |