(1996). Process and form in Geomorphology. Routledge.
Chicago-čujuhus (17. p.)Process and Form in Geomorphology. London: Routledge, 1996.
MLA-čujuhus (9. p.)Process and Form in Geomorphology. Routledge, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.