Felix, R. C. (1998). Petron cuts prices ; power rates frozen. Philippine Star.
Chicago Style aipamenaFelix, Rocel C. "Petron Cuts Prices ; Power Rates Frozen." Philippine Star 1998.
MLA aipamenaFelix, Rocel C. "Petron Cuts Prices ; Power Rates Frozen." Philippine Star, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.