Dyfyniad APA

Geographia Limited. (1984). Geographia atlas of the world. Geographia.

Dyfyniad Arddull Chicago

Geographia Limited. Geographia Atlas of the World. London: Geographia, 1984.

Dyfyniad MLA

Geographia Limited. Geographia Atlas of the World. Geographia, 1984.

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