Billington, R. (2002). Religion without god. Routledge.
Chicago-čujuhus (17. p.)Billington, Ray. Religion Without God. London: Routledge, 2002.
MLA-čujuhus (9. p.)Billington, Ray. Religion Without God. Routledge, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.