Dyfyniad APA
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2005). Environmental requirements and market access. OECD.
Dyfyniad Arddull Chicago
Organisation for Economic Co-operation and Development and ProQuest (Firm). Environmental Requirements and Market Access. Paris: OECD, 2005.
Dyfyniad MLA
Organisation for Economic Co-operation and Development and ProQuest (Firm). Environmental Requirements and Market Access. OECD, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.