Philippines. Department of Tourism. Pangasinan & Ilocos. (2006). Region I: The Pangasinan & Ilocos tourism situationer 2006. Department of Tourism. Region I.
Citace podle Chicago (17th ed.)Philippines. Department of Tourism. Pangasinan & Ilocos. Region I: The Pangasinan & Ilocos Tourism Situationer 2006. San Fernando City, (La Union): Department of Tourism. Region I, 2006.
Citace podle MLA (9th ed.)Philippines. Department of Tourism. Pangasinan & Ilocos. Region I: The Pangasinan & Ilocos Tourism Situationer 2006. Department of Tourism. Region I, 2006.
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