Energy and environmental concerns, 2004.
| Egile korporatiboa: | , | 
|---|---|
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | Washington, D.C.
          Transportation Research Board
    
        2004. | 
| Saila: | Transportation research record
              1880. | 
| Gaiak: | 


