APA引文

Philippines. Department of Tourism. Region II. (2006). Cagayan Valley Region2006 tourism situationer. Department of Tourism. Regional Office.

Chicago Style (17th ed.) Citation

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.