VRIES, M. A. D. (1995). Professional Secretary's Encyclopedic Dictionary. Prentice Hall.
Čikaški stil citiranja (17. izdanje)VRIES, Mary A. De. Professional Secretary's Encyclopedic Dictionary. Prentice Hall, 1995.
MLA način citiranja (8. izdanje)VRIES, Mary A. De. Professional Secretary's Encyclopedic Dictionary. Prentice Hall, 1995.
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