APA
Asal, V., De la Calle, L., Findley, M., & Young, J. (2012). Killing civilians or holding territory? How to think about terrorism. International Studies Review, 14, 475–497.
Chicago/Turabian
Asal, Victor, Luis De la Calle, Michael Findley, and Joseph Young. “Killing Civilians or Holding Territory? How to Think about Terrorism.” International Studies Review 14 (2012): 475–497.
MLA
Asal, Victor, et al. “Killing Civilians or Holding Territory? How to Think about Terrorism.” International Studies Review, vol. 14, Blackwell Publishing Ltd Oxford, UK, 2012, pp. 475–97.