APA (7th ed.) Citation

Segaller, S. (1987). Invisible armies: Terrorism into the 1990s ([rev. and updated ed.].). Sphere Books.

Chicago Style (17th ed.) Citation

Segaller, Stephen. Invisible Armies: Terrorism into the 1990s. [rev. and updated ed.]. London: Sphere Books, 1987.

MLA (9th ed.) Citation

Segaller, Stephen. Invisible Armies: Terrorism into the 1990s. [rev. and updated ed.]. Sphere Books, 1987.