APA (7e ed.) Bronvermelding

Rivera, D. PetroEnergy, partners extend West Africa oil concession. The Philippine Star.

Chicago (17e ed.) Bronvermelding

Rivera, Danessa. "PetroEnergy, Partners Extend West Africa Oil Concession." The Philippine Star .

MLA (9e ed.) Bronvermelding

Rivera, Danessa. "PetroEnergy, Partners Extend West Africa Oil Concession." The Philippine Star, .

Let op: Deze citaties zijn niet altijd 100% accuraat.