Philippines. Department of Tourism. Region II. (2006). Cagayan Valley Region2006 tourism situationer. Department of Tourism. Regional Office.
Čikaški stil citiranja (17. izdanje)Philippines. Department of Tourism. Region II. Cagayan Valley Region2006 Tourism Situationer. Tuguegarao, Cagayan: Department of Tourism. Regional Office, 2006.
MLA način citiranja (9. izdanje)Philippines. Department of Tourism. Region II. Cagayan Valley Region2006 Tourism Situationer. Department of Tourism. Regional Office, 2006.
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