Cita APA (7a ed.)

Nicholas, H. G. (1967). The United Nations as a political institution (3rd ed.). University Press.

Cita Chicago Style (17a ed.)

Nicholas, H. G. The United Nations as a Political Institution. 3rd ed. Oxford [etc.]: University Press, 1967.

Cita MLA (9a ed.)

Nicholas, H. G. The United Nations as a Political Institution. 3rd ed. University Press, 1967.