Dyfyniad APA

Brooks, D. H., & Hummels, D. (2009). Infrastructure's role in lowering Asia's trade costs: Building for trade. E. Elgar.

Dyfyniad Arddull Chicago

Brooks, Douglas H., and David Hummels. Infrastructure's Role in Lowering Asia's Trade Costs: Building for Trade. Cheltenham: E. Elgar, 2009.

Dyfyniad MLA

Brooks, Douglas H., and David Hummels. Infrastructure's Role in Lowering Asia's Trade Costs: Building for Trade. E. Elgar, 2009.

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