Cita APA (7a ed.)

American Express. (1940). Manila and the Philippines (1940 ed.). American Express.

Cita Chicago Style (17a ed.)

American Express. Manila and the Philippines. 1940 ed. [Manila]: American Express, 1940.

Cita MLA (9a ed.)

American Express. Manila and the Philippines. 1940 ed. American Express, 1940.