Dyfyniad APA

(2011). Moving freight with better trucks. OECD.

Dyfyniad Arddull Chicago

Moving Freight with Better Trucks. Paris: OECD, 2011.

Dyfyniad MLA

Moving Freight with Better Trucks. OECD, 2011.

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