Hillis, N. D. The Investment of Influence: A Study of Social Sympathy and Service.
Chicagoスタイル(17版)引用形式Hillis, Newell Dwight. The Investment of Influence: A Study of Social Sympathy and Service.
MLA(9版)引用形式Hillis, Newell Dwight. The Investment of Influence: A Study of Social Sympathy and Service.
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