APA-čujuhus (7. p.)
Durant, W., & Durant, A. The Lessons of History. Simon and Schuster.
Chicago-čujuhus (17. p.)
Durant, Will, juo Ariel Durant. The Lessons of History. Nueva York, EUA: Simon and Schuster.
MLA-čujuhus (9. p.)
Durant, Will, juo Ariel Durant. The Lessons of History. Simon and Schuster.
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