Barnes, J. (1994). The toils of scepticism. Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)Barnes, Jonathan. The Toils of Scepticism. Cambridge [u.a.]: Cambridge Univ. Press, 1994.
Lua MLA (8ú heag.)Barnes, Jonathan. The Toils of Scepticism. Cambridge Univ. Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.