APA (7th ed.) Citation

Tongko, P. L. (1988). The Philippine government (rev. ed.). National Book Store.

Chicago Style (17th ed.) Citation

Tongko, Primo L. The Philippine Government. rev. ed. Metro Manila: National Book Store, 1988.

MLA (9th ed.) Citation

Tongko, Primo L. The Philippine Government. rev. ed. National Book Store, 1988.