Dyfyniad APA

Ellicott, K. (2008). Countries of the world and their leaders yearbook 2009. Detroit, Mich: Gale/Cengage Learning.

Dyfyniad Arddull Chicago

Ellicott, Karen. Countries of the World and Their Leaders Yearbook 2009. Detroit, Mich: Gale/Cengage Learning, 2008.

Dyfyniad MLA

Ellicott, Karen. Countries of the World and Their Leaders Yearbook 2009. Detroit, Mich: Gale/Cengage Learning, 2008.

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