MLA

Haberfeld, M.R, et al. A New Understanding of Terrorism. Springer US, 2009.

APA

Haberfeld, M., Haberfeld, M. R, Von Hassell, A., & Hassell, A. (2009). A New Understanding of Terrorism. Springer US.

Chicago

Haberfeld, M.R, Maria R Haberfeld, Agostino Von Hassell, and Agostino Hassell. A New Understanding of Terrorism. : Springer US, 2009.