APA (7th ed.) Citation

Iparraguirre, I. (1960). A key to the study of the Spiritual exercises (2d ed.). St. Paul Publications.

Chicago Style (17th ed.) Citation

Iparraguirre, Ignacio. A Key to the Study of the Spiritual Exercises. 2d ed. Bombay: St. Paul Publications, 1960.

MLA (8th ed.) Citation

Iparraguirre, Ignacio. A Key to the Study of the Spiritual Exercises. 2d ed. St. Paul Publications, 1960.