Nonmotorized transportation research and issues operations and safety; planning and administration
| Údar corparáideach: | |
|---|---|
| Formáid: | LEABHAR | 
| Teanga: | English | 
| Foilsithe / Cruthaithe: | 
        Washington, D.C.
          National Academy Press
    
        1993.
     | 
| Sraith: | Transportation research record
              1396.             | 
| Ábhair: | 


