Duncan, W. H. (2013). Duncan, William H., SJ, Papers. DigitalGeorgetown.
Chicago Style (17th ed.) CitationDuncan, William H. Duncan, William H., SJ, Papers. Washington, D.C.: DigitalGeorgetown, 2013.
MLA引文Duncan, William H. Duncan, William H., SJ, Papers. DigitalGeorgetown, 2013.
警告:这些引文格式不一定是100%准确.