Cita APA (7th ed.)

Corpuz, O. D. (1989). The roots of the Filipino nation. Aklahi Foundation, Inc.

Cita Chicago (17th ed.)

Corpuz, O. D. The Roots of the Filipino Nation. Quezon City: Aklahi Foundation, Inc, 1989.

Cita MLA (9th ed.)

Corpuz, O. D. The Roots of the Filipino Nation. Aklahi Foundation, Inc, 1989.