APA (7th ed.) Zitazioa
Purpura, P. P. (2007). Terrorism and homeland security: An introduction with applications. Butterworth-Heinemann.
Chicago Style (17th ed.) Zitazioa
Purpura, Philip P. Terrorism and Homeland Security: An Introduction with Applications. Amsterdam ; Boston: Butterworth-Heinemann, 2007.
MLA (9th ed.) Zitazioa
Purpura, Philip P. Terrorism and Homeland Security: An Introduction with Applications. Butterworth-Heinemann, 2007.
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