Dyfyniad APA

Heller,H Robert. International trade: Theory and empirical evidence (2.). Prentice Hall of India.

Dyfyniad Arddull Chicago

Heller,H Robert. International Trade: Theory and Empirical Evidence. 2. New Delhi: Prentice Hall of India.

Dyfyniad MLA

Heller,H Robert. International Trade: Theory and Empirical Evidence. 2. Prentice Hall of India.

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