Cita APA (7a ed.)

Ramsay, J. D., & Logan, K. G. (2012). Introduction to homeland security. Westview Press.

Cita Chicago Style (17a ed.)

Ramsay, James D., y Keith Gregory Logan. Introduction to Homeland Security. Boulder, Colo.: Westview Press, 2012.

Cita MLA (8a ed.)

Ramsay, James D., y Keith Gregory Logan. Introduction to Homeland Security. Westview Press, 2012.