Dyfyniad APA
Organisation for Economic Co-operation and Development. (2018). OECD statistics on international trade in services. OECD Publishing.
Dyfyniad Arddull Chicago
Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services. Paris: OECD Publishing, 2018.
Dyfyniad MLA
Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services. OECD Publishing, 2018.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.