Cofnodi Dyfyniadau
Dyfyniad APA
(2001). Extended producer responsibility: A guidance manual for governments. OECD Publications Services.
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Dyfyniad Arddull Chicago
Extended Producer Responsibility: A Guidance Manual for Governments. Paris, France: OECD Publications Services, 2001.
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Dyfyniad MLA
Extended Producer Responsibility: A Guidance Manual for Governments. OECD Publications Services, 2001.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.