Apodaca, O. (1997). Cartel, price hike: No place in a liberalized oil industry. Manila Times.
Chicago-viite (17. p.)Apodaca, Odette. "Cartel, Price Hike: No Place in a Liberalized Oil Industry." Manila Times 1997.
MLA-viite (9. p.)Apodaca, Odette. "Cartel, Price Hike: No Place in a Liberalized Oil Industry." Manila Times, 1997.
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