Urmila Rai & S. M. Rai. (1999). Business Communication. Himalaya Publishing House.
Chicago Style aipamenaUrmila Rai and S. M. Rai. Business Communication. Mumbai: Himalaya Publishing House, 1999.
MLA aipamenaUrmila Rai and S. M. Rai. Business Communication. Himalaya Publishing House, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.