Roberts. A Political Companion to Frederick Douglass. The University Press of Kentucky.
Chicagoスタイル(17版)引用形式Roberts. A Political Companion to Frederick Douglass. The University Press of Kentucky.
MLA(8版)引用形式Roberts. A Political Companion to Frederick Douglass. The University Press of Kentucky.
警告: この引用は必ずしも正確ではありません.