APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.