Philippines. Department of Tourism. Office of Tourism Information & Teehankee, R. J. (1990). Philippines. Office of Tourism Information, Deaprtment of tourism.
Chicago-referens (17:e uppl.)Philippines. Department of Tourism. Office of Tourism Information och Raul J. Teehankee. Philippines. Manila: Office of Tourism Information, Deaprtment of tourism, 1990.
MLA-referens (9:e uppl.)Philippines. Department of Tourism. Office of Tourism Information och Raul J. Teehankee. Philippines. Office of Tourism Information, Deaprtment of tourism, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.