Gunn, G. S. (1955). A Scientist of the Invisible. By A. P. Shepherd. Hodder and Stoughton. 12s. 6d. Scottish journal of theology, 8(3), 317-318. doi:10.1017/S003693060000898X
Παραπομπή σε μορφή Chicago (17η εκδ.)Gunn, George S. "A Scientist of the Invisible. By A. P. Shepherd. Hodder and Stoughton. 12s. 6d." Scottish Journal of Theology 8, no. 3 (1955): 317-318, https://doi.org/10.1017/S003693060000898X.
Παραπομπή σε μορφή MLA (9th εκδ.)Gunn, George S. "A Scientist of the Invisible. By A. P. Shepherd. Hodder and Stoughton. 12s. 6d." Scottish Journal of Theology, vol. 8, no. 3, 1955, pp. 317-318, https://doi.org/10.1017/S003693060000898X.
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