Gewald, J., Luning, S., & van Walraven, K. (2009). The speed of change: Motor vehicles and people in Africa, 1890-2000. Leiden: Brill.
Cita Chicago (17th ed.)Gewald, Jan-Bart, Sabine Luning, i Klaas van Walraven. The Speed of Change: Motor Vehicles and People in Africa, 1890-2000. Leiden: Brill, 2009.
Cita MLA (8th ed.)Gewald, Jan-Bart, et al. The Speed of Change: Motor Vehicles and People in Africa, 1890-2000. Leiden: Brill, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.