APA

Nicholas H. G., . (1975). The United Nations as a political institution. London: Oxford University Press.

Chicago

Nicholas H G, . 1975. The United Nations as a political institution. London: Oxford University Press.

Harvard

Nicholas H. G., . (1975). The United Nations as a political institution. London: Oxford University Press.

MLA

Nicholas H G, . The United Nations as a political institution. London: Oxford University Press. 1975.