Franciscan Institute (St. Bonaventure University), Shannon, T. A., & Ingham, M. B. (1993). The ethical method of John Duns Scotus: A contribution to Roman Catholic Moral Theology. St. Bonaventure U.; The Franciscan Institute.

Franciscan Institute (St. Bonaventure University), Thomas A. Shannon, and Mary Beth Ingham. The Ethical Method of John Duns Scotus: A Contribution to Roman Catholic Moral Theology. St. Bonaventure, N.Y.: St. Bonaventure U.; The Franciscan Institute, 1993.

Franciscan Institute (St. Bonaventure University), et al. The Ethical Method of John Duns Scotus: A Contribution to Roman Catholic Moral Theology. St. Bonaventure U.; The Franciscan Institute, 1993.