APA (7th ed.) Citation

Kiefer, W. J. (1961). Leo XIII: A light from heaven (1a. ed.). The Bruce Publishing Company.

Chicago Style (17th ed.) Citation

Kiefer, William J. Leo XIII: A Light from Heaven. 1a. ed. Milwaukee: The Bruce Publishing Company, 1961.

MLA (9th ed.) Citation

Kiefer, William J. Leo XIII: A Light from Heaven. 1a. ed. The Bruce Publishing Company, 1961.