Kallaus, N. F., & Keeling, B. L. (1991). Administrative office management (10th ed.). South-Western Pub. Co..
Chicago-čujuhus (17. p.)Kallaus, Norman Francis, juo B. Lewis Keeling. Administrative Office Management. 10th ed. Cincinnati, OH: South-Western Pub. Co., 1991.
MLA-čujuhus (9. p.)Kallaus, Norman Francis, juo B. Lewis Keeling. Administrative Office Management. 10th ed. South-Western Pub. Co., 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.