Ferris, W. H. Alexander Crummell: An Apostle of Negro Culture The American Negro Academy. Occasional Papers No. 20.
Chicagoスタイル(17版)引用形式Ferris, William Henry. Alexander Crummell: An Apostle of Negro Culture The American Negro Academy. Occasional Papers No. 20.
MLA(9版)引用形式Ferris, William Henry. Alexander Crummell: An Apostle of Negro Culture The American Negro Academy. Occasional Papers No. 20.
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