Institut für Seeverkehrswirtschaft und -Logistik (Bremen, Germany). Maritime Conference, ebrary, Inc, Lemper, B., & Zachcial, M. (2009). Trends in container shipping: Proceedings of the ISL Maritime Conference 2008, 9th and 10th of December, World Trade Center Bremen. Peter Lang.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Institut für Seeverkehrswirtschaft und -Logistik (Bremen, Germany). Maritime Conference, Inc ebrary, Burkhard Lemper, و Manfred Zachcial. Trends in Container Shipping: Proceedings of the ISL Maritime Conference 2008, 9th and 10th of December, World Trade Center Bremen. New York ; Frankfurt am Main: Peter Lang, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Institut für Seeverkehrswirtschaft und -Logistik (Bremen, Germany). Maritime Conference, et al. Trends in Container Shipping: Proceedings of the ISL Maritime Conference 2008, 9th and 10th of December, World Trade Center Bremen. Peter Lang, 2009.