Hyman, J., & Philosophy, T. R. I. o. (2005). What, if anything, are colours relative to? Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Hyman, J., agus The Royal Institute of Philosophy. What, If Anything, Are Colours Relative to? Cambridge University Press, 2005.
Lua MLA (9ú heag.)Hyman, J., agus The Royal Institute of Philosophy. What, If Anything, Are Colours Relative to? Cambridge University Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.