Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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