Cita APA (7a ed.)

Merk, O., & Hesse, M. (2012). The Competitiveness of Global Port-Cities: The Case of Hamburg, Germany. OECD Publishing.

Cita Chicago Style (17a ed.)

Merk, Olaf, y Markus Hesse. The Competitiveness of Global Port-Cities: The Case of Hamburg, Germany. Paris: OECD Publishing, 2012.

Cita MLA (9a ed.)

Merk, Olaf, y Markus Hesse. The Competitiveness of Global Port-Cities: The Case of Hamburg, Germany. OECD Publishing, 2012.