Dyfyniad APA

World History Association. World history bulletin: Newsletter of the World History Association. World History Association.

Dyfyniad Arddull Chicago

World History Association. World History Bulletin: Newsletter of the World History Association. [Philadelphia, PA]: World History Association.

Dyfyniad MLA

World History Association. World History Bulletin: Newsletter of the World History Association. World History Association.

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