Gerster, T. V. (1930). The rule of the first order of Saint Francis: A brief introduction for clerics and lay-brothers. Capuchin Province of St. Augustine.

Gerster, Thomas Villanova. The Rule of the First Order of Saint Francis: A Brief Introduction for Clerics and Lay-brothers. Pittsburgh: Capuchin Province of St. Augustine, 1930.

Gerster, Thomas Villanova. The Rule of the First Order of Saint Francis: A Brief Introduction for Clerics and Lay-brothers. Capuchin Province of St. Augustine, 1930.