Cofnodi Dyfyniadau
Dyfyniad APA
Organisation for Economic Co-operation and Development. (1993). OECD environmental performance reviews. Organisation for Economic Co-operation and Development.
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Dyfyniad Arddull Chicago
Organisation for Economic Co-operation and Development. OECD Environmental Performance Reviews. Paris, France: Organisation for Economic Co-operation and Development, 1993.
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Dyfyniad MLA
Organisation for Economic Co-operation and Development. OECD Environmental Performance Reviews. Organisation for Economic Co-operation and Development, 1993.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.