Cita APA (7th ed.)

Osias, C. O. (1965). The pioneering courage of man. [s.n.].

Cita Chicago (17th ed.)

Osias, Camilo Olaviano. The Pioneering Courage of Man. Manila: [s.n.], 1965.

Cita MLA (9th ed.)

Osias, Camilo Olaviano. The Pioneering Courage of Man. [s.n.], 1965.