Dyfyniad APA

Herries Davies, G. L. (1969). The earth in decay: A history of British geomorphology, 1578-1878. Macdonald & Co.

Dyfyniad Arddull Chicago

Herries Davies, G. L. The Earth in Decay: A History of British Geomorphology, 1578-1878. London: Macdonald & Co, 1969.

Dyfyniad MLA

Herries Davies, G. L. The Earth in Decay: A History of British Geomorphology, 1578-1878. Macdonald & Co, 1969.

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