Harrison, H. (1988). Secretariel duties (8th.). Pitman.
Chicago-čujuhus (17. p.)Harrison, Helen. Secretariel Duties. 8th. London: Pitman, 1988.
MLA-čujuhus (9. p.)Harrison, Helen. Secretariel Duties. 8th. Pitman, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.