Cita APA (7a ed.)

Castro, P. A. (1983). Philippine bilateral air agreements. Foreign Service Institute.

Cita Chicago Style (17a ed.)

Castro, Pacifico A. Philippine Bilateral Air Agreements. Manila: Foreign Service Institute, 1983.

Cita MLA (9a ed.)

Castro, Pacifico A. Philippine Bilateral Air Agreements. Foreign Service Institute, 1983.