Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

Notteboom, Theo, Peter De Langen, και Cesar Ducruet. Ports in Proximity: Competition and Coordination Among Adjacent Seaports. Surrey: Ashgate, 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

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