Catholic Church. Pope (1878-1903 : Leo XIII), Catholic Church. Pope (1922-1939 : Pius XI), & Husslein, J. (1940). Social wellsprings: Fourteen Epochal Documents. The Bruce publishing company.
Chicago-Zitierstil (17. Ausg.)Catholic Church. Pope (1878-1903 : Leo XIII), Catholic Church. Pope (1922-1939 : Pius XI), und Joseph Husslein. Social Wellsprings: Fourteen Epochal Documents. Milwaukee: The Bruce publishing company, 1940.
MLA-Zitierstil (8. Ausg.)Catholic Church. Pope (1878-1903 : Leo XIII), et al. Social Wellsprings: Fourteen Epochal Documents. The Bruce publishing company, 1940.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.