Williamson, T. (2009). Pr,cis of The Philosophy of Philosophy.
Chicago-čujuhus (17. p.)Williamson, T. Pr,cis of The Philosophy of Philosophy. 2009.
MLA-čujuhus (9. p.)Williamson, T. Pr,cis of The Philosophy of Philosophy. 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.