Gaya APA

Spilka, B, &, M, D, N, , (. (1997). The psychology of religion: Theoretical approaches. . Boulder: Boulder Westview Press.

Gaya MLA

Spilka, Bernard, &, McIntosh,, Daniel, N., , (ed.). "The psychology of religion: Theoretical approaches. ". Boulder: Boulder Westview Press, 1997. Buku.