Gaya APA

Nicholson, Michael. (1989). Formal theories in international relations (Buku Hubungan Internasonal) . New York & London: Cambridge University Press.

Gaya Chicago

Nicholson, Michael. Formal theories in international relations (Buku Hubungan Internasonal). New York & London: Cambridge University Press, 1989. Text.

Gaya MLA

Nicholson, Michael. Formal theories in international relations (Buku Hubungan Internasonal). New York & London: Cambridge University Press, 1989. Text.

Gaya Turabian

Nicholson, Michael. Formal theories in international relations (Buku Hubungan Internasonal). New York & London: Cambridge University Press, 1989. Print.