Lua APA (7ú heag.)

11.11.11. 490/06.2.2.3: Organisation for economic co-operation and development (OECD).

Lua i Stíl Chicago (17ú heag.)

11.11.11. 490/06.2.2.3: Organisation for Economic Co-operation and Development (OECD).

Lua MLA (8ú heag.)

11.11.11. 490/06.2.2.3: Organisation for Economic Co-operation and Development (OECD).

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