Mehra Shital Kakkar. (2012). Business Etiquette. Collins Business.
Cita Chicago (17th ed.)Mehra Shital Kakkar. Business Etiquette. Noida: Collins Business, 2012.
Cita MLA (9th ed.)Mehra Shital Kakkar. Business Etiquette. Collins Business, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.