Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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