Peterson. The Problem of Evil. University of Notre Dame Press.
Chicago-čujuhus (17. p.)Peterson. The Problem of Evil. University of Notre Dame Press.
MLA-čujuhus (9. p.)Peterson. The Problem of Evil. University of Notre Dame Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.