APA

Birkenhauer H. F., Dunne T. a., .A New Introduction to the Spiritual Exercises of ST. Ignatius. Collegeville, Minnesota: .

Chicago

Birkenhauer Henry F, Dunne Tad...et al, .A New Introduction to the Spiritual Exercises of ST. Ignatius. Collegeville, Minnesota: .

Harvard

Birkenhauer H. F., Dunne T. a., .A New Introduction to the Spiritual Exercises of ST. Ignatius. Collegeville, Minnesota: .

MLA

Birkenhauer Henry F, Dunne Tad...et al, .Collegeville, Minnesota: . .