Gaya APA

Fortmann, T, J, J, W, A, M. (2004). Balance of power: theory and practice in the 21st century . California: Standford University Press.

Gaya MLA

Fortmann, T.V.Paul, James, J., Wirtz,, And, Michel. "Balance of power: theory and practice in the 21st century". California: Standford University Press, 2004. Book.