Dumont, R. A. (1987). Business communications workbook. Little, Brown.
Chicago-čujuhus (17. p.)Dumont, Raymond A. Business Communications Workbook. Boston: Little, Brown, 1987.
MLA-čujuhus (9. p.)Dumont, Raymond A. Business Communications Workbook. Little, Brown, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.