Cita APA (7th ed.)

Bernas, J. G. (1995). Foreign relations in constitutional law. Rex Book Store.

Cita Chicago (17th ed.)

Bernas, Joaquin G. Foreign Relations in Constitutional Law. Manila: Rex Book Store, 1995.

Cita MLA (9th ed.)

Bernas, Joaquin G. Foreign Relations in Constitutional Law. Rex Book Store, 1995.