Παραπομπή APA

T.K. Derry. (1961). The United Kingdom: A survey of British institutions today. Longmans.

Παραπομπή Chicago Style

T.K. Derry. The United Kingdom: A Survey of British Institutions Today. London: Longmans, 1961.

Παραπομπή MLA

T.K. Derry. The United Kingdom: A Survey of British Institutions Today. Longmans, 1961.