Cita APA (7a ed.)

Huebner, G. G. (1920). Ocean steamship traffic management. D. Appleton and Company.

Cita Chicago Style (17a ed.)

Huebner, Grover G. Ocean Steamship Traffic Management. New York [etc.]: D. Appleton and Company, 1920.

Cita MLA (9a ed.)

Huebner, Grover G. Ocean Steamship Traffic Management. D. Appleton and Company, 1920.