(2003). OECD environmental performance reviews: Poland. OECD.
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Dyfyniad Arddull Chicago
OECD Environmental Performance Reviews: Poland. Paris, Cedex, France: OECD, 2003.
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Dyfyniad MLA
OECD Environmental Performance Reviews: Poland. OECD, 2003.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.