APA citiranje

Portugal Telecom, SGPS, S.A. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

Chicago Style (17th ed.) Citation

Portugal Telecom, SGPS, S.A. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

MLA citiranje

Portugal Telecom, SGPS, S.A. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

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