Shanley, J. P. (2008). Doubt: A parable. Theatre Communications Group.
Chicago-čujuhus (17. p.)Shanley, John Patrick. Doubt: A Parable. New York: Theatre Communications Group, 2008.
MLA-čujuhus (9. p.)Shanley, John Patrick. Doubt: A Parable. Theatre Communications Group, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.