Gaya APA
Loyola, I, D. (1959).
Letters of St. Ignatius of Loyola, selected and transl. by W.Young S.J. .
Chicago:
Loyola University Press.
Gaya MLA
Loyola, Ignatius, De.
"Letters of St. Ignatius of Loyola, selected and transl. by W.Young S.J. ".
Chicago:
Loyola University Press,
1959.
Buku.