APA
Christou G., . (2007). The European Union and Enlargement. New York: Palgrave Macmillan.
Chicago
Christou George, . 2007. The European Union and Enlargement. New York: Palgrave Macmillan.
Harvard
Christou G., . (2007). The European Union and Enlargement. New York: Palgrave Macmillan.
MLA
Christou George, . The European Union and Enlargement. New York: Palgrave Macmillan. 2007.