John duns Scotus and the principle «omne quod movetur ab alio movetur» / by Roy R. Effler
. – St. Bonaventure, N.Y.Louvain, BelgiumPaderborn : The Franciscan Institute : E. Nauwelaerts : F. Schoningh, 1962
. – XVI, 208 p.; 23 cm
. – (Franciscan Institute Publications ; 15)