Bonnel, P., Lee-Gosselin, M., Zmud, J., & Madre, J. (2009). Transport survey methods: Keeping up with a changing world (First edition.). Emerald Group Publishing Limited.
Cita Chicago (17th ed.)Bonnel, Patrick, Martin Lee-Gosselin, Johanna Zmud, i Jean-Loup Madre. Transport Survey Methods: Keeping Up with a Changing World. First edition. United Kingdom: Emerald Group Publishing Limited, 2009.
Cita MLA (9th ed.)Bonnel, Patrick, et al. Transport Survey Methods: Keeping Up with a Changing World. First edition. Emerald Group Publishing Limited, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.