MLA

Howorth, Jolyon, and John T.S Keeler. Defending Europe : the Eu, Nato and the Quest for European Autonomy. New York: Palgrave Macmillan, 2003.

APA

Howorth, J., & Keeler, J. T.S. (2003). Defending Europe : the EU, NATO and the quest for european autonomy. New York: Palgrave Macmillan.

Chicago

Howorth, Jolyon, and John T.S Keeler. Defending Europe: The EU, NATO and the Quest for European Autonomy. New York: Palgrave Macmillan, 2003.