Gregory, K. (1973). Drainage basin form and process: A geomorphological approach. Arnold.
Citazione stile Chigago Style (17a edizione)Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. London: Arnold, 1973.
Citatione MLA (9a ed.)Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. Arnold, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.