Heaney, J. J. (1984). Psyche and spirit (Revised ed.). Paulist.
Lua i Stíl Chicago (17ú heag.)Heaney, John J. Psyche and Spirit. Revised ed. New York: Paulist, 1984.
Lua MLA (9ú heag.)Heaney, John J. Psyche and Spirit. Revised ed. Paulist, 1984.
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