APA-viite (7. p.)

Picton, J. A. (1886). The essential nature of religion. s.n.].

Chicago-viite (17. p.)

Picton, J. Allanson. The Essential Nature of Religion. [S.l.: s.n.], 1886.

MLA-viite (8. p.)

Picton, J. Allanson. The Essential Nature of Religion. s.n.], 1886.