The Travel Preview System. (1996). Islands Philippines (1994/1995 ed.). Travelview International.
Cita Chicago (17th ed.)The Travel Preview System. Islands Philippines. 1994/1995 ed. Houston, Tex: Travelview International, 1996.
Cita MLA (9th ed.)The Travel Preview System. Islands Philippines. 1994/1995 ed. Travelview International, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.