Cita APA (7th ed.)

Hamlin, S. (1997). How to talk so people listen (2.). Harper Collins Publications.

Cita Chicago (17th ed.)

Hamlin, Sonya. How to Talk so People Listen. 2. New Delhi: Harper Collins Publications, 1997.

Cita MLA (9th ed.)

Hamlin, Sonya. How to Talk so People Listen. 2. Harper Collins Publications, 1997.