Gleason, R. W. (1968). Contemporary spirituality: Current problems in religious life. Macmillan.
Chicago-referens (17:e uppl.)Gleason, Robert W. Contemporary Spirituality: Current Problems in Religious Life. New York: Macmillan, 1968.
MLA-referens (9:e uppl.)Gleason, Robert W. Contemporary Spirituality: Current Problems in Religious Life. Macmillan, 1968.
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