Dyfyniad APA

McColl, R. W. (2005). Encyclopedia of world geography. Checkmark Books/Facts On File.

Dyfyniad Arddull Chicago

McColl, R. W. Encyclopedia of World Geography. New York: Checkmark Books/Facts On File, 2005.

Dyfyniad MLA

McColl, R. W. Encyclopedia of World Geography. Checkmark Books/Facts On File, 2005.

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