Cita APA (7a ed.)

Smith, G. D., & Smith, G. D. (1990). Combating terrorism. Routledge.

Cita Chicago Style (17a ed.)

Smith, G. Davidson, y Gareth Dylan Smith. Combating Terrorism. London [u.a.]: Routledge, 1990.

Cita MLA (8a ed.)

Smith, G. Davidson, y Gareth Dylan Smith. Combating Terrorism. Routledge, 1990.