APA(7版)引用形式

O'Reilly, R. M. (1867). Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867].

Chicagoスタイル(17版)引用形式

O'Reilly, Robert M. Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867]. 1867.

MLA(8版)引用形式

O'Reilly, Robert M. Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867]. 1867.

警告: この引用は必ずしも正確ではありません.