DOUGLAS, I. [., & SPENCER, T. [. (1985). Environmental change and tropical geomorphology. George Allen and Unwin.
Chicago-čujuhus (17. p.)DOUGLAS, I [ED.], juo T [ED.] SPENCER. Environmental Change and Tropical Geomorphology. London: George Allen and Unwin, 1985.
MLA-čujuhus (9. p.)DOUGLAS, I [ED.], juo T [ED.] SPENCER. Environmental Change and Tropical Geomorphology. George Allen and Unwin, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.