Gaya APA

Hall, J, A, &, I, G, J. (1989). The state. Concepts in the Social Sciences . Milton Keynes: Milton Keynes Open University Press.

Gaya MLA

Hall, John, A., &, Ikenberry,, G., John. "The state. Concepts in the Social Sciences". Milton Keynes: Milton Keynes Open University Press, 1989. Buku.