Dyfyniad APA

Teaching geography. Geographical Association [etc.].

Dyfyniad Arddull Chicago

Teaching Geography. Sheffield, Eng. [etc]: Geographical Association [etc.].

Dyfyniad MLA

Teaching Geography. Geographical Association [etc.].

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