University of Notre Dame. Library. Department of Special Collections, Noll, J. F., Pursley, L. A., Sheen, F. J., O'Brien, J. A., & Lord, D. A. (1801). [Catholic Pamphlet Collection: Pamphlets in theology, philosophy, sociology, education and other subjects common in the teaching of the Roman Catholic Church.]. Dept. of Special Collections, Theodore M. Hesburgh Library, University of Notre Dame.

University of Notre Dame. Library. Department of Special Collections, John Francis Noll, Leo A. Pursley, Fulton J. Sheen, John A. O'Brien, và Daniel A. Lord. [Catholic Pamphlet Collection: Pamphlets in Theology, Philosophy, Sociology, Education and Other Subjects Common in the Teaching of the Roman Catholic Church.]. [Notre Dame, Ind.: Dept. of Special Collections, Theodore M. Hesburgh Library, University of Notre Dame, 1801.

University of Notre Dame. Library. Department of Special Collections, et al. [Catholic Pamphlet Collection: Pamphlets in Theology, Philosophy, Sociology, Education and Other Subjects Common in the Teaching of the Roman Catholic Church.]. Dept. of Special Collections, Theodore M. Hesburgh Library, University of Notre Dame, 1801.