Harper, F. A. (1949). Liberty, a path to its recovery. Foundation for Economic Education.
Chicagoスタイル(17版)引用形式Harper, F. A. Liberty, a Path to Its Recovery. Irvington-on-Hudson, N.Y: Foundation for Economic Education, 1949.
MLA(8版)引用形式Harper, F. A. Liberty, a Path to Its Recovery. Foundation for Economic Education, 1949.
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