Philippines. Department of Tourism. Region II. (2006). Cagayan Valley Region2006 tourism situationer. Department of Tourism. Regional Office.
芝加哥风格引文Philippines. Department of Tourism. Region II. Cagayan Valley Region2006 Tourism Situationer. Tuguegarao, Cagayan: Department of Tourism. Regional Office, 2006.
MLA引文Philippines. Department of Tourism. Region II. Cagayan Valley Region2006 Tourism Situationer. Department of Tourism. Regional Office, 2006.
警告：这些引文格式不一定是100％准确.