Treacy, G. C. (1952). Pius X: Pope of the children. Paulist Press.
Chicago Style aipamenaTreacy, Gerald C. Pius X: Pope of the Children. New York: Paulist Press, 1952.
MLA aipamenaTreacy, Gerald C. Pius X: Pope of the Children. Paulist Press, 1952.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.