APA (7th ed.) Citation

Notteboom, T., Ducruet, C., & Langen, P. W. d. (2009). Ports in proximity: Competition and coordination among adjacent seaports. Ashgate Pub..

Chicago Style (17th ed.) Citation

Notteboom, Theo, César Ducruet, and Peter W. de Langen. Ports in Proximity: Competition and Coordination Among Adjacent Seaports. Farnham, England ; Burlington, VT: Ashgate Pub., 2009.

MLA (9th ed.) Citation

Notteboom, Theo, et al. Ports in Proximity: Competition and Coordination Among Adjacent Seaports. Ashgate Pub., 2009.