Roothaan, J. P. (2013). Roothaan, Jan Philip, SJ, Archive. DigitalGeorgetown.
Chicago Style (17th ed.) CitationRoothaan, Joannes Philippus. Roothaan, Jan Philip, SJ, Archive. Washington, D.C.: DigitalGeorgetown, 2013.
MLA (8th ed.) CitationRoothaan, Joannes Philippus. Roothaan, Jan Philip, SJ, Archive. DigitalGeorgetown, 2013.
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