Cita APA (7a ed.)

Kupchan, C. A. (2010). How enemies become friends: The sources of stable peace. Princeton University Press.

Cita Chicago Style (17a ed.)

Kupchan, Charles A. How Enemies Become Friends: The Sources of Stable Peace. Princeton, (New Jersey): Princeton University Press, 2010.

Cita MLA (9a ed.)

Kupchan, Charles A. How Enemies Become Friends: The Sources of Stable Peace. Princeton University Press, 2010.