Cita APA (7th ed.)

Francisco, G. B. (1942). Open letter to our countrymen. [s.n.].

Cita Chicago (17th ed.)

Francisco, Guillermo B. Open Letter to Our Countrymen. [Manila]: [s.n.], 1942.

Cita MLA (9th ed.)

Francisco, Guillermo B. Open Letter to Our Countrymen. [s.n.], 1942.