Dyfyniad APA

O2 Czech Republic a.s. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

Dyfyniad Arddull Chicago

O2 Czech Republic a.s. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

Dyfyniad MLA

O2 Czech Republic a.s. MarketLine Company Profile. MarketLine, a Progressive Digital Media business.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.