Cita APA (7th ed.)

Combs, C. C. (1997). Terrorism in the twenty-first century. Prentice Hall.

Cita Chicago (17th ed.)

Combs, Cindy C. Terrorism in the Twenty-first Century. Upper Saddle River, N.J: Prentice Hall, 1997.

Cita MLA (9th ed.)

Combs, Cindy C. Terrorism in the Twenty-first Century. Prentice Hall, 1997.