APA (7th ed.) Citation

Mathies, O. (1924). Hamburgs Reederei 1814-1914. Friederichsen.

Chicago Style (17th ed.) Citation

Mathies, Otto. Hamburgs Reederei 1814-1914. Hamburg: Friederichsen, 1924.

MLA (8th ed.) Citation

Mathies, Otto. Hamburgs Reederei 1814-1914. Friederichsen, 1924.