APA (7th ed.) Citation

Roothaan, J. P. (2013). Roothaan, Jan Philip, SJ, Archive. DigitalGeorgetown.

Chicago Style (17th ed.) Citation

Roothaan, Joannes Philippus. Roothaan, Jan Philip, SJ, Archive. Washington, D.C.: DigitalGeorgetown, 2013.

MLA (8th ed.) Citation

Roothaan, Joannes Philippus. Roothaan, Jan Philip, SJ, Archive. DigitalGeorgetown, 2013.

Warning: These citations may not always be 100% accurate.