Journal of the Society for Psychical Research

Vol. 25-26, London 1929.

Gwendolyn Kelley Hack

The Direct Voice in Italy (1 of 2)

Psychic Science, N. 4, Vol. 7, gennaio 1929, pp. 272-330.

Gwendolyn Kelley Hack

The Direct Voice in Italy (2 of 2)

Psychic Science, N. 1, Vol. 8, aprile 1929, pp. 9-26.

Proceedings of the Society for Psychical Research

Vol. 39, London 1930.

Theodore Besterman

Review of Modern Psychic Mysteries book

Journal of the Society for Psychical Research, N. 461, Vol. 26, London gennaio 1930, pp. 10-14.

Journal of the Society for Psychical Research

Vol. 27, London 1931.

Proceedings of the Society for Psychical Research

Vol. 40, London 1931.

James Maxwell

La divinazione

Giuseppe Laterza, Bari 1932.

Proceedings of the Society for Psychical Research

Vol. 41, London 1932.

Journal of the Society for Psychical Research

Vol. 28, London 1933.