Rishipal 7 sheron , J. Business Communication. SPD.
Cita Chicago (17th ed.)Rishipal 7 sheron , Jyoti. Business Communication. Mumbai: SPD.
Cita MLA (9th ed.)Rishipal 7 sheron , Jyoti. Business Communication. SPD.
Atenció: Aquestes cites poden no estar 100% correctes.