Cita APA (7a ed.)

Johnson, E. R. (1916). The Panama canal and commerce. D. Appleton and Company.

Cita Chicago Style (17a ed.)

Johnson, Emory R. The Panama Canal and Commerce. New York [etc.]: D. Appleton and Company, 1916.

Cita MLA (9a ed.)

Johnson, Emory R. The Panama Canal and Commerce. D. Appleton and Company, 1916.