Yan, G. H. (2007). Apo Reef set to reclaim old story: Park opens for tourism, closes for fishing. Animal Scene.
Chicago-referens (17:e uppl.)Yan, Gregg H. "Apo Reef Set to Reclaim Old Story: Park Opens for Tourism, Closes for Fishing." Animal Scene 2007.
MLA-referens (9:e uppl.)Yan, Gregg H. "Apo Reef Set to Reclaim Old Story: Park Opens for Tourism, Closes for Fishing." Animal Scene, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.