Citazione Stile APA (7a Edizione)

Gatdula, D. (2001). Big 3, two others roll back oil prices. Philippine Star.

Citazione stile Chigago Style (17a edizione)

Gatdula, Donabelle. "Big 3, Two Others Roll Back Oil Prices." Philippine Star 2001.

Citatione MLA (9a ed.)

Gatdula, Donabelle. "Big 3, Two Others Roll Back Oil Prices." Philippine Star, 2001.