Dyfyniad APA

(1974). Encyclopedia of world geography: Man and his world today. Octopus.

Dyfyniad Arddull Chicago

Encyclopedia of World Geography: Man and His World Today. London: Octopus, 1974.

Dyfyniad MLA

Encyclopedia of World Geography: Man and His World Today. Octopus, 1974.

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