1. Psychological and mystical interpretations of early Quakerism: William James and Rufus Jones
2. James, William. 1968.The Varieties of Religious Experience, 490Collins: The Fontana Library.
3. Jones, Rufus M., ed. 1976.The Journal of George Fox, 116Richmond, Indiana: Friends United Press. See also pp. 84,82.
4. Sharman, Cecil W., ed. 1980.No More But my Love. The Letters of George Fox, 35London: Quaker Home Service.
5. Steers, Douglas, ed. 1984.Quaker Spirituality, 150London: S.P.C.K.