Dyfyniad APA

Dawson, J. W. The Meeting-Place of Geology and History.

Dyfyniad Arddull Chicago

Dawson, John William. The Meeting-Place of Geology and History.

Dyfyniad MLA

Dawson, John William. The Meeting-Place of Geology and History.

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