Cita APA (7a ed.)

Shaffer, D. R. (2009). Social and personality development (6th ed.). Wadsworth/Cengage Learning.

Cita Chicago Style (17a ed.)

Shaffer, David R. Social and Personality Development. 6th ed. Australia: Wadsworth/Cengage Learning, 2009.

Cita MLA (9a ed.)

Shaffer, David R. Social and Personality Development. 6th ed. Wadsworth/Cengage Learning, 2009.