Citazione Stile APA (7a Edizione)

Knorr, K. E. (1969). Contending approaches to international politics. Princeton University Press.

Citazione stile Chigago Style (17a edizione)

Knorr, Klaus Eugen. Contending Approaches to International Politics. Princeton, N.J: Princeton University Press, 1969.

Citatione MLA (9a ed.)

Knorr, Klaus Eugen. Contending Approaches to International Politics. Princeton University Press, 1969.