Dyfyniad APA

Organisation for Economic Co-operation and Development. (2019). National accounts of OECD countries: Main aggregates. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development. National Accounts of OECD Countries: Main Aggregates. Paris: OECD, 2019.

Dyfyniad MLA

Organisation for Economic Co-operation and Development. National Accounts of OECD Countries: Main Aggregates. OECD, 2019.

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