APA (7th ed.) Citation

Bigo, D., & Guild, E. (2005). Controlling frontiers: Free movement into and within Europe. Ashgate.

Chicago Style (17th ed.) Citation

Bigo, Didier, and Elspeth Guild. Controlling Frontiers: Free Movement into and Within Europe. Aldershot, Hants, England: Ashgate, 2005.

MLA (9th ed.) Citation

Bigo, Didier, and Elspeth Guild. Controlling Frontiers: Free Movement into and Within Europe. Ashgate, 2005.