Tacio, H. D. (2017). Strange animal behavior: Nature's harbinger of earthquakes? Philippine Graphic.
Lua i Stíl Chicago (17ú heag.)Tacio, Henrylito D. "Strange Animal Behavior: Nature's Harbinger of Earthquakes?" Philippine Graphic 2017.
Lua MLA (9ú heag.)Tacio, Henrylito D. "Strange Animal Behavior: Nature's Harbinger of Earthquakes?" Philippine Graphic, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.