O'Reilly, R. M. (1867). Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867].
Chicago Style (17th ed.) CitationO'Reilly, Robert M. Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867]. 1867.
MLA引文O'Reilly, Robert M. Envelope, To: John O'Reilly Esq, Philadelphia, Penna., May 5, [1867]. 1867.
警告：这些引文格式不一定是100％准确.