APA (7th ed.) Citation

Summers, C., & Markusen, E. (1999). Collective violence: Harmful behavior in groups and governments. Rowwman & Littlefied.

Chicago Style (17th ed.) Citation

Summers, Craig, and Eric Markusen. Collective Violence: Harmful Behavior in Groups and Governments. Lanham: Rowwman & Littlefied, 1999.

MLA (9th ed.) Citation

Summers, Craig, and Eric Markusen. Collective Violence: Harmful Behavior in Groups and Governments. Rowwman & Littlefied, 1999.