GESSIN JANICE. (1987). ADVANCED PFS: PROFESSIONAL WRITE AND FILE. OSBORNE MCGRAW-HILL.
Čikaški stil citiranja (17. izdanje)GESSIN JANICE. ADVANCED PFS: PROFESSIONAL WRITE AND FILE. BERKELY CALIFORNIA: OSBORNE MCGRAW-HILL, 1987.
MLA način citiranja (9. izdanje)GESSIN JANICE. ADVANCED PFS: PROFESSIONAL WRITE AND FILE. OSBORNE MCGRAW-HILL, 1987.
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