Dyfyniad APA

Organisation for Economic Co-operation and Development. (2017). OECD compendium of productivity indicators 2017. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development. OECD Compendium of Productivity Indicators 2017. Paris: OECD, 2017.

Dyfyniad MLA

Organisation for Economic Co-operation and Development. OECD Compendium of Productivity Indicators 2017. OECD, 2017.

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