New York. Parker Publishing Company. (1965). Business etiquette handbook. [s.n.
Čikaški stil citiranja (17. izdanje)New York. Parker Publishing Company. Business Etiquette Handbook. West Nyack, N.Y: [s.n, 1965.
MLA način citiranja (9. izdanje)New York. Parker Publishing Company. Business Etiquette Handbook. [s.n, 1965.
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