Murphy, A. R. (2019). William penn: Life. Oxford University Press.
Cita Chicago (17th ed.)Murphy, Andrew R.,. William Penn: Life. New York: Oxford University Press, 2019.
Cita MLA (9th ed.)Murphy, Andrew R.,. William Penn: Life. Oxford University Press, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.