Dyfyniad APA

OECD trade policy working papers. Paris: OECD Publishing.

Dyfyniad Arddull Chicago

OECD Trade Policy Working Papers. Paris: OECD Publishing.

Dyfyniad MLA

OECD Trade Policy Working Papers. Paris: OECD Publishing.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.