RAI URMILA. (2008). EFFECTIVE COMMUNICATION 8TH ED (8TH ED.). HIMALAYA PUBLISHING HOUSE.
Cita Chicago (17th ed.)RAI URMILA. EFFECTIVE COMMUNICATION 8TH ED. 8TH ED. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2008.
Cita MLA (9th ed.)RAI URMILA. EFFECTIVE COMMUNICATION 8TH ED. 8TH ED. HIMALAYA PUBLISHING HOUSE, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.