Cita APA (7th ed.)
Shaffer, D. R. (2009). Social and personality development (6th ed.). Wadsworth.
Cita Chicago (17th ed.)
Shaffer, David R. Social and Personality Development. 6th ed. Belmont, CA: Wadsworth, 2009.
Cita MLA (9th ed.)
Shaffer, David R. Social and Personality Development. 6th ed. Wadsworth, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.