APA (7th ed.) Citation

Sobel. (1975). Political terrorism vol 1. Facts on File.

Chicago Style (17th ed.) Citation

Sobel. Political Terrorism Vol 1. New York: Facts on File, 1975.

MLA (8th ed.) Citation

Sobel. Political Terrorism Vol 1. Facts on File, 1975.

Warning: These citations may not always be 100% accurate.