APA (7th ed.) Citation

Longford, E. (1983). Elizabeth R: A biography. Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Longford, Elizabeth. Elizabeth R: A Biography. London: Weidenfeld and Nicolson, 1983.

MLA (9th ed.) Citation

Longford, Elizabeth. Elizabeth R: A Biography. Weidenfeld and Nicolson, 1983.