Dyfyniad APA

APPLEYARD DENNIS R. (2006). INTERNATIONAL ECONOMICS (5TH.). MCGRAW-HILL.

Dyfyniad Arddull Chicago

APPLEYARD DENNIS R. INTERNATIONAL ECONOMICS. 5TH. BOSTON: MCGRAW-HILL, 2006.

Dyfyniad MLA

APPLEYARD DENNIS R. INTERNATIONAL ECONOMICS. 5TH. MCGRAW-HILL, 2006.

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