Visperas, E. (2010). Pangasinan officials unveil 300-hectare eco-tourism zone. Philippine Star.
Chicago Style (17th ed.) CitationVisperas, Eva. "Pangasinan Officials Unveil 300-hectare Eco-tourism Zone." Philippine Star 2010.
MLA (9th ed.) CitationVisperas, Eva. "Pangasinan Officials Unveil 300-hectare Eco-tourism Zone." Philippine Star, 2010.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.