(1991). Nonmotorized transportation 1991: A peer-reviewed publication of the Transportation Research Board.
Chicago-Zitierstil (17. Ausg.)Nonmotorized Transportation 1991: A Peer-reviewed Publication of the Transportation Research Board. Washington, DC, 1991.
MLA-Zitierstil (9. Ausg.)Nonmotorized Transportation 1991: A Peer-reviewed Publication of the Transportation Research Board. 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.