APA-čujuhus (7. p.)
Flanagan, O. J. (2007). The really hard problem: Meaning in a material world. MIT Press.
Chicago-čujuhus (17. p.)
Flanagan, Owen J. The Really Hard Problem: Meaning in a Material World. Cambridge, Mass.: MIT Press, 2007.
MLA-čujuhus (9. p.)
Flanagan, Owen J. The Really Hard Problem: Meaning in a Material World. MIT Press, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.