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.
Precaución: Estas citas no son 100% exactas.