APA (7th ed.) Citation

Shafritz, J. M., Gibbons, E. F., & Scott, G. E. (1991). Almanac of modern terrorism. Facts on File.

Chicago Style (17th ed.) Citation

Shafritz, Jay M., E. F. Gibbons, and Gregory E. Scott. Almanac of Modern Terrorism. New York [u.a.]: Facts on File, 1991.

MLA (9th ed.) Citation

Shafritz, Jay M., et al. Almanac of Modern Terrorism. Facts on File, 1991.