Christensen. American Lives. University of Nebraska Press.
Chicago-čujuhus (17. p.)Christensen. American Lives. University of Nebraska Press.
MLA-čujuhus (9. p.)Christensen. American Lives. University of Nebraska Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.