APA (7th ed.) Citation

Hough, P. (2018). Understanding global security (4th edition.). Routledge.

Chicago Style (17th ed.) Citation

Hough, Peter. Understanding Global Security. 4th edition. London ; New York: Routledge, 2018.

MLA (9th ed.) Citation

Hough, Peter. Understanding Global Security. 4th edition. Routledge, 2018.

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