APA-čujuhus (7. p.)
Harlan, D. (1997). The degradation of American history. University of Chicago Press.
Chicago-čujuhus (17. p.)
Harlan, David. The Degradation of American History. Chicago, Ill.: University of Chicago Press, 1997.
MLA-čujuhus (9. p.)
Harlan, David. The Degradation of American History. University of Chicago Press, 1997.
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