APA (7th ed.) Citation

Lansford, T., Pauly, R. J., & Covarrubias, J. (2016). To protect and defend: US homeland security policy (First issued in paperback.). Routledge.

Chicago Style (17th ed.) Citation

Lansford, Tom, Robert J. Pauly, and Jack Covarrubias. To Protect and Defend: US Homeland Security Policy. First issued in paperback. London New York: Routledge, 2016.

MLA (8th ed.) Citation

Lansford, Tom, et al. To Protect and Defend: US Homeland Security Policy. First issued in paperback. Routledge, 2016.