APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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