Cita APA (7a ed.)

Schneider, R. I. (1930). The port of Hamburg including the ports of Altona and Cuxhaven. Government Printing Office.

Cita Chicago Style (17a ed.)

Schneider, Ralph I. The Port of Hamburg Including the Ports of Altona and Cuxhaven. Washington: Government Printing Office, 1930.

Cita MLA (9a ed.)

Schneider, Ralph I. The Port of Hamburg Including the Ports of Altona and Cuxhaven. Government Printing Office, 1930.