Philippines. Department of Tourism. Office of Tourism Information & Teehankee, R. J. (1990). Philippines. Office of Tourism Information, Deaprtment of tourism.
Cita Chicago (17th ed.)Philippines. Department of Tourism. Office of Tourism Information i Raul J. Teehankee. Philippines. Manila: Office of Tourism Information, Deaprtment of tourism, 1990.
Cita MLA (9th ed.)Philippines. Department of Tourism. Office of Tourism Information i Raul J. Teehankee. Philippines. Office of Tourism Information, Deaprtment of tourism, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.