Pennington, E. L. (1951). Notes to George Keith's "Journal". Historical magazine of the Protestant Episcopal Church, 20(4), 437-479.
Παραπομπή σε μορφή Chicago (17η εκδ.)Pennington, Edgar Legare. "Notes to George Keith's "Journal"." Historical Magazine of the Protestant Episcopal Church 20, no. 4 (1951): 437-479.
Παραπομπή σε μορφή MLA (9th εκδ.)Pennington, Edgar Legare. "Notes to George Keith's "Journal"." Historical Magazine of the Protestant Episcopal Church, vol. 20, no. 4, 1951, pp. 437-479.
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