Gaya APA

Ahlhorn, F. (2009). (E-Book Teknik Sipil) Long-Term Perspective in Coastal Zone Development (-). New York: Universitat at Oldenburg.

Gaya MLA

Ahlhorn, Frank. "(E-Book Teknik Sipil) Long-Term Perspective in Coastal Zone Development". - New York: Universitat at Oldenburg, 2009. Computer File.