APA (7. basım) Alıntı

Villanueva, R. (2012). Critical habitat for Phl duck declared in Isabela. Philippine Star.

Chicago Style (17. basım) Atıf

Villanueva, Rhodina. "Critical Habitat for Phl Duck Declared in Isabela." Philippine Star 2012.

MLA (9th ed.) Atıf

Villanueva, Rhodina. "Critical Habitat for Phl Duck Declared in Isabela." Philippine Star, 2012.