Aton, J. M. (2010). John Wesley Powell: His life and legacy. Bonneville Books.
芝加哥风格引文Aton, James M. John Wesley Powell: His Life and Legacy. Salt Lake City: Bonneville Books, 2010.
MLA引文Aton, James M. John Wesley Powell: His Life and Legacy. Bonneville Books, 2010.
警告：这些引文格式不一定是100％准确.