Janis, J. (1972). Business Writing (2nd.). Barnes & Noble.
Chicago-čujuhus (17. p.)Janis, J. Business Writing. 2nd. New York: Barnes & Noble, 1972.
MLA-čujuhus (9. p.)Janis, J. Business Writing. 2nd. Barnes & Noble, 1972.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.