APA (7th ed.) Citation

Treacy, G. C. (1952). Pius X: Pope of the children. Paulist Press.

Chicago Style (17th ed.) Citation

Treacy, Gerald C. Pius X: Pope of the Children. New York: Paulist Press, 1952.

MLA (8th ed.) Citation

Treacy, Gerald C. Pius X: Pope of the Children. Paulist Press, 1952.