Cita APA

Cook, R. A., & Cook, G. O. (2011). Guide to business etiquette. Boston: Prentice Hall.

Chicago Style Citation

Cook, Roy A., i Gwen O. Cook. Guide to Business Etiquette. Boston: Prentice Hall, 2011.

Cita MLA

Cook, Roy A., i Gwen O. Cook. Guide to Business Etiquette. Boston: Prentice Hall, 2011.