(1991). Aetas demand probe of PNOC. Manila Times.
Chicago Style aipamena"Aetas Demand Probe of PNOC." Manila Times 1991.
MLA aipamena"Aetas Demand Probe of PNOC." Manila Times, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena