Dyfyniad APA

(1996). Process and form in Geomorphology. Routledge.

Dyfyniad Arddull Chicago

Process and Form in Geomorphology. London: Routledge, 1996.

Dyfyniad MLA

Process and Form in Geomorphology. Routledge, 1996.

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