APA (7th ed.) Citation

Ignatius, o. L. The spiritual exercises of S. Ignatius of Loyola. Founder of the Society of Jesus.

Chicago Style (17th ed.) Citation

Ignatius, of Loyola. The Spiritual Exercises of S. Ignatius of Loyola. Founder of the Society of Jesus.

MLA (9th ed.) Citation

Ignatius, of Loyola. The Spiritual Exercises of S. Ignatius of Loyola. Founder of the Society of Jesus.

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