APA (7th ed.) Citation

Brock, Geis, & Muller. (2006). Democratic wars: Looking at the dark side of democratic peace. Palgrave Macmillan.

Chicago Style (17th ed.) Citation

Brock, Geis, and Muller. Democratic Wars: Looking at the Dark Side of Democratic Peace. New York: Palgrave Macmillan, 2006.

MLA (8th ed.) Citation

Brock, et al. Democratic Wars: Looking at the Dark Side of Democratic Peace. Palgrave Macmillan, 2006.