Hudson, T. J. (1904). The evolution of the soul: And other essays. A.C. McClurg & Co..
Lua i Stíl Chicago (17ú heag.)Hudson, Thomson Jay. The Evolution of the Soul: And Other Essays. Chicago: A.C. McClurg & Co., 1904.
Lua MLA (8ú heag.)Hudson, Thomson Jay. The Evolution of the Soul: And Other Essays. A.C. McClurg & Co., 1904.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.