Cita APA (7th ed.)

Dunckel, J. (1994). Business etiquette. Lancer.

Cita Chicago (17th ed.)

Dunckel, Jacqueline. Business Etiquette. New delhi: Lancer, 1994.

Cita MLA (9th ed.)

Dunckel, Jacqueline. Business Etiquette. Lancer, 1994.