APA (7e ed.) Bronvermelding

Galang, R., & Solleza, C. M. (2001). Oil price hike: A question of collusion? Philippines Free Press.

Chicago (17e ed.) Bronvermelding

Galang, Roberto, en Chani Marie Solleza. "Oil Price Hike: A Question of Collusion?" Philippines Free Press 2001.

MLA (9e ed.) Bronvermelding

Galang, Roberto, en Chani Marie Solleza. "Oil Price Hike: A Question of Collusion?" Philippines Free Press, 2001.