Byer, G. C. J. (1999). Charlemagne and baptism: A study of responses to the circular letter of 811/812. International Scholars Publications.
Citace podle Chicago (17th ed.)Byer, Glenn C. J. Charlemagne and Baptism: A Study of Responses to the Circular Letter of 811/812. San Francisco: International Scholars Publications, 1999.
Citace podle MLA (8th ed.)Byer, Glenn C. J. Charlemagne and Baptism: A Study of Responses to the Circular Letter of 811/812. International Scholars Publications, 1999.
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