"The Free Churches and the Roman Church: the conception of the church in Anabaptism and in Roman Catholicism, past and present" by Michael Novak. Journal of Ecumenical Studies, Vol. 3, No. 3,, 1965, PNVK 4/06, Box: PNVK 4, Folder: 06. Michael Novak Collection, NVK. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/464349 Accessed February 26, 2026.