APA (7th ed.) Citation

Sage Publications, Postmes, T., & Jetten, J. (2006). Individuality and the group: Advances in social identity. SAGE.

Chicago Style (17th ed.) Citation

Sage Publications, T. Postmes, and Jolanda Jetten. Individuality and the Group: Advances in Social Identity. London: SAGE, 2006.

MLA (9th ed.) Citation

Sage Publications, et al. Individuality and the Group: Advances in Social Identity. SAGE, 2006.