Joustra, Robert. “Rerum Novarum and the Right to Work: 19th-Century Lessons for 21st-Century Labor.” In Modern Papal Diplomacy and Social Teaching in World Affairs, edited by Mariano P. Barbato, Robert J. Joustra, and Dennis R. Hoover. Routledge 2019.

Also Published as Joustra, Robert. “Rerum Novarum and the Right to Work: Nineteenth Century Lessons for Twenty-First Century Labor.” The Review of Faith & International Affairs Vol. 15, no. 4 (2017): 39-47.