Gaya APA

Peters, W, S. (). The Spiritual exercises of St.Ignatius, exposition and interpretation. . Jersey City NJ: The program to adapt the Spiritual 1968.

Gaya MLA

Peters, W.A.M.,, S.J.. "The Spiritual exercises of St.Ignatius, exposition and interpretation. ". Jersey City NJ: The program to adapt the Spiritual 1968, . Buku.