Dyfyniad APA

Ruhe, R. V. (1975). Geomorphology: Geomorphic processess and superficial geology. Houghton Mifflin Co.

Dyfyniad Arddull Chicago

Ruhe, Robert V. Geomorphology: Geomorphic Processess and Superficial Geology. Boston: Houghton Mifflin Co, 1975.

Dyfyniad MLA

Ruhe, Robert V. Geomorphology: Geomorphic Processess and Superficial Geology. Houghton Mifflin Co, 1975.

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