Acton, J. E. E. D. A. A lecture on the study of history: Delivered at Cambridge, June 11, 1895. University Microfilms International.
Citace podle Chicago (17th ed.)Acton, John Emerich Edward Dalberg Acton. A Lecture on the Study of History: Delivered at Cambridge, June 11, 1895. Ann Arbor, Mich.: University Microfilms International.
Citace podle MLA (8th ed.)Acton, John Emerich Edward Dalberg Acton. A Lecture on the Study of History: Delivered at Cambridge, June 11, 1895. University Microfilms International.
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