Buck, M. (1977). The origin of negative dialectis. The Free Press.
Chicago-čujuhus (17. p.)Buck, Morss. The Origin of Negative Dialectis. The Free Press, 1977.
MLA-čujuhus (9. p.)Buck, Morss. The Origin of Negative Dialectis. The Free Press, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.