Philadelphia, A. C. H. S. o. (1897). Advertisement, three lecture cards, American Catholic Historical Society, [1897?].
Citace podle Chicago (17th ed.)Philadelphia, American Catholic Historical Society of. Advertisement, Three Lecture Cards, American Catholic Historical Society, [1897?]. 1897.
Citace podle MLA (8th ed.)Philadelphia, American Catholic Historical Society of. Advertisement, Three Lecture Cards, American Catholic Historical Society, [1897?]. 1897.
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