Richards, G. (2011). Psychology, religion, and the nature of the soul: A historical entanglement. Springer eBooks.. https://doi.org/10.1007/978-1-4419-7173-9
Lua i Stíl Chicago (17ú heag.)Richards, Graham. "Psychology, Religion, and the Nature of the Soul: A Historical Entanglement." Springer EBooks. 2011. https://doi.org/10.1007/978-1-4419-7173-9.
Lua MLA (9ú heag.)Richards, Graham. "Psychology, Religion, and the Nature of the Soul: A Historical Entanglement." Springer EBooks., 2011, https://doi.org/10.1007/978-1-4419-7173-9.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.