Lua APA (7ú heag.)
(2013). OECD statistics on international trade in services. OECD.
Lua i Stíl Chicago (17ú heag.)
OECD Statistics on International Trade in Services. [Paris, France]: OECD, 2013.
Lua MLA (9ú heag.)
OECD Statistics on International Trade in Services. OECD, 2013.
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