Gregory, K. (1973). Drainage basin form and process: A geomorphological approach. Arnold.
Chicago-čujuhus (17. p.)Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. London: Arnold, 1973.
MLA-čujuhus (9. p.)Gregory, K.J. Drainage Basin Form and Process: A Geomorphological Approach. Arnold, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.