APA-čujuhus (7. p.)
Easton, S. C., & Wieruszowski, H. (1961). The era of Charlemagne: Frankish state and society. Van Nostrand.
Chicago-čujuhus (17. p.)
Easton, Stewart Copinger, juo Helene Wieruszowski. The Era of Charlemagne: Frankish State and Society. Princeton, N. J.: Van Nostrand, 1961.
MLA-čujuhus (9. p.)
Easton, Stewart Copinger, juo Helene Wieruszowski. The Era of Charlemagne: Frankish State and Society. Van Nostrand, 1961.
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