APA (7th ed.) Citation

Ellemers, N., Spears, R., & Doosje, B. (1999). Social identity: Context, commitment, content. Blackwell Publishers.

Chicago Style (17th ed.) Citation

Ellemers, Naomi, Russell Spears, and Bertjan Doosje. Social Identity: Context, Commitment, Content. Malden, MA: Blackwell Publishers, 1999.

MLA (9th ed.) Citation

Ellemers, Naomi, et al. Social Identity: Context, Commitment, Content. Blackwell Publishers, 1999.