Cita APA (7th ed.)

Dhar, R. Effective communication skills - I (1st.). Vipul Prakashan.

Cita Chicago (17th ed.)

Dhar, Raj. Effective Communication Skills - I. 1st. Mumbai: Vipul Prakashan.

Cita MLA (9th ed.)

Dhar, Raj. Effective Communication Skills - I. 1st. Vipul Prakashan.

Atenció: Aquestes cites poden no estar 100% correctes.