Franklin W.Dixon. (2007). Hardy Boys: Foul Play. Simon & Schuster.
Chicago-čujuhus (17. p.)Franklin W.Dixon. Hardy Boys: Foul Play. New York: Simon & Schuster, 2007.
MLA-čujuhus (9. p.)Franklin W.Dixon. Hardy Boys: Foul Play. Simon & Schuster, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.