RAI URMILA [A]. (2007). BUSINESS COMMUNICATION (9TH.). HIMALAYA PUBLISHING HOUSE.
Chicago Style aipamenaRAI URMILA [A]. BUSINESS COMMUNICATION. 9TH. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2007.
MLA aipamenaRAI URMILA [A]. BUSINESS COMMUNICATION. 9TH. HIMALAYA PUBLISHING HOUSE, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.