Philippines. Department of Tourism. Region III. (1998). Region III 1998 tourism situationer. Department of Tourism.
Cita Chicago (17th ed.)Philippines. Department of Tourism. Region III. Region III 1998 Tourism Situationer. San Fernando, Pampanga: Department of Tourism, 1998.
Cita MLA (9th ed.)Philippines. Department of Tourism. Region III. Region III 1998 Tourism Situationer. Department of Tourism, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.