APA (7th ed.) Citation

Ignacio, d. L., & Roothaan, J. P. (1920). Exercitia spiritualia S. P. Ignatii de Loyola: Versio litteralis ex autographo hispanico, notis illustrata Bibliotheca ascetica.

Chicago Style (17th ed.) Citation

Ignacio, de Loyola, and Joannes Philippus Roothaan. "Exercitia Spiritualia S. P. Ignatii De Loyola: Versio Litteralis Ex Autographo Hispanico, Notis Illustrata." Bibliotheca Ascetica 1920.

MLA (9th ed.) Citation

Ignacio, de Loyola, and Joannes Philippus Roothaan. "Exercitia Spiritualia S. P. Ignatii De Loyola: Versio Litteralis Ex Autographo Hispanico, Notis Illustrata." Bibliotheca Ascetica, 1920.

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