APA (7th ed.) Zitazioa
China Petroleum & Chemical Corporation (Sinopec) MarketLine Company Profile.
Chicago Style (17th ed.) Zitazioa
China Petroleum & Chemical Corporation (Sinopec) MarketLine Company Profile.
MLA (9th ed.) Zitazioa
China Petroleum & Chemical Corporation (Sinopec) MarketLine Company Profile.
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