Cita APA (7a ed.)

Kupchan, C. (2012). How enemies become friends: The souces of stable peace. Princeton University Press.

Cita Chicago Style (17a ed.)

Kupchan, Charles. How Enemies Become Friends: The Souces of Stable Peace. Princeton: Princeton University Press, 2012.

Cita MLA (9a ed.)

Kupchan, Charles. How Enemies Become Friends: The Souces of Stable Peace. Princeton University Press, 2012.