(1988). Modelling geomorphological systems. Wiley.
Chicago-čujuhus (17. p.)Modelling Geomorphological Systems. Chichester: Wiley, 1988.
MLA-čujuhus (9. p.)Modelling Geomorphological Systems. Wiley, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.