APA(7版)引用形式

Unknown. Cabinet Card Portrait of Two Unidentified Males.

Chicagoスタイル(17版)引用形式

Unknown. Cabinet Card Portrait of Two Unidentified Males.

MLA(8版)引用形式

Unknown. Cabinet Card Portrait of Two Unidentified Males.

警告: この引用は必ずしも正確ではありません.