Cita APA (7th ed.)

Smith, M. W., & Penrose, R. (2013). Beating the odds: The life and times of E.A. Milne. Imperial College Press.

Cita Chicago (17th ed.)

Smith, Meg Weston, i Roger Penrose. Beating the Odds: The Life and Times of E.A. Milne. London: Imperial College Press, 2013.

Cita MLA (9th ed.)

Smith, Meg Weston, i Roger Penrose. Beating the Odds: The Life and Times of E.A. Milne. Imperial College Press, 2013.