Dyfyniad APA

Gregory, K. (1973). Drainage basin form and process: A geomorphological approach. Arnold.

Dyfyniad Arddull Chicago

Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. London: Arnold, 1973.

Dyfyniad MLA

Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. Arnold, 1973.

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