APA-čujuhus (7. p.)
Aton, J. M. (2010). John Wesley Powell: His life and legacy. Bonneville Books.
Chicago-čujuhus (17. p.)
Aton, James M. John Wesley Powell: His Life and Legacy. Salt Lake City: Bonneville Books, 2010.
MLA-čujuhus (9. p.)
Aton, James M. John Wesley Powell: His Life and Legacy. Bonneville Books, 2010.
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