APA (7th ed.) Citation

Hennessy, P. (2001). The prime minister: The office and its holders since 1945 (Publ. with new material.). Penguin Books.

Chicago Style (17th ed.) Citation

Hennessy, Peter. The Prime Minister: The Office and Its Holders Since 1945. Publ. with new material. London: Penguin Books, 2001.

MLA (9th ed.) Citation

Hennessy, Peter. The Prime Minister: The Office and Its Holders Since 1945. Publ. with new material. Penguin Books, 2001.

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