Proceedings of the American Society for Psychical Research
Vol. 12, 1918.
Proceedings of the Society for Psychical Research
Vol. 30, 1918.
Vol. 13, 1919.
Journal of the Society for Psychical Research
Vol. 19, London 1919.
Journal of the American Society for Psychical Research
Vol. 14, 1920.
Vol. 31, London 1920.
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