Crowdy. Hearing the Future. University of Hawai'i Press.
Chicago-čujuhus (17. p.)Crowdy. Hearing the Future. University of Hawai'i Press.
MLA-čujuhus (9. p.)Crowdy. Hearing the Future. University of Hawai'i Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.