Widder, K. R. (1999). Battle for the soul: Métis children encounter evangelical Protestants at Mackinaw Mission, 1823-1837. Michigan State University Press.
芝加哥风格引文Widder, Keith R. Battle for the Soul: Métis Children Encounter Evangelical Protestants at Mackinaw Mission, 1823-1837. East Lansing, Mich.: Michigan State University Press, 1999.
MLA引文Widder, Keith R. Battle for the Soul: Métis Children Encounter Evangelical Protestants at Mackinaw Mission, 1823-1837. Michigan State University Press, 1999.
警告：这些引文格式不一定是100％准确.