Cita APA (7a ed.)

Siegfried, A., H. H, & Hemmig, D. (1940). Suez and Panama (1st american ed.). Harcourt, Brace and Company.

Cita Chicago Style (17a ed.)

Siegfried, André, H. H, y Doris Hemmig. Suez and Panama. 1st american ed. New York: Harcourt, Brace and Company, 1940.

Cita MLA (9a ed.)

Siegfried, André, et al. Suez and Panama. 1st american ed. Harcourt, Brace and Company, 1940.