Moorehead, W. K., & Leighton, M. M. (1923). The Cahokia mounds. University of Illinois.
Lua i Stíl Chicago (17ú heag.)Moorehead, Warren King, agus Morris Morgan Leighton. The Cahokia Mounds. Urbana, Ill.: University of Illinois, 1923.
Lua MLA (8ú heag.)Moorehead, Warren King, agus Morris Morgan Leighton. The Cahokia Mounds. University of Illinois, 1923.
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