Murphy, A. R. (2019). William penn: Life. Oxford University Press.
Chicago-čujuhus (17. p.)Murphy, Andrew R.,. William Penn: Life. New York: Oxford University Press, 2019.
MLA-čujuhus (9. p.)Murphy, Andrew R.,. William Penn: Life. Oxford University Press, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.