Salter, W. M. (1891). Ethical religion (2d ed.). Roberts Brothers.
Lua i Stíl Chicago (17ú heag.)Salter, William Mackintire. Ethical Religion. 2d ed. Boston: Roberts Brothers, 1891.
Lua MLA (8ú heag.)Salter, William Mackintire. Ethical Religion. 2d ed. Roberts Brothers, 1891.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.