APA (7th ed.) Citation

Nicholas, H. (1975). The United Nations as a political institution. O.U.P.

Chicago Style (17th ed.) Citation

Nicholas, H.G. The United Nations as a Political Institution. O.U.P, 1975.

MLA (9th ed.) Citation

Nicholas, H.G. The United Nations as a Political Institution. O.U.P, 1975.

Warning: These citations may not always be 100% accurate.