Dyfyniad APA

National Geographic. (2005). Africa: A storied landscape. National Geographic Society.

Dyfyniad Arddull Chicago

National Geographic. Africa: A Storied Landscape. Washington, DC: National Geographic Society, 2005.

Dyfyniad MLA

National Geographic. Africa: A Storied Landscape. National Geographic Society, 2005.

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