APA (7th ed.) Citation

Armstrong & Anderson 1941. (2007). Geopolitics of European Union enlargement: The fortress empire. Routledge.

Chicago Style (17th ed.) Citation

Armstrong and Anderson 1941. Geopolitics of European Union Enlargement: The Fortress Empire. London New York: Routledge, 2007.

MLA (9th ed.) Citation

Armstrong and Anderson 1941. Geopolitics of European Union Enlargement: The Fortress Empire. Routledge, 2007.

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