(2013). OECD statistics on international trade in services. OECD.
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Dyfyniad Arddull Chicago
OECD Statistics on International Trade in Services. [Paris, France]: OECD, 2013.
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Dyfyniad MLA
OECD Statistics on International Trade in Services. OECD, 2013.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.