APA-viite (7. p.)

Causing, L. T., & Causing, V. B. (1980). Philippine government under the new constitution (New ed.). L.T. Causing.

Chicago-viite (17. p.)

Causing, Leopoldo T., ja Virgilia B. Causing. Philippine Government Under the New Constitution. New ed. Iloilo City: L.T. Causing, 1980.

MLA-viite (9. p.)

Causing, Leopoldo T., ja Virgilia B. Causing. Philippine Government Under the New Constitution. New ed. L.T. Causing, 1980.