Franciscans. Minister General (1967-1979 : Koser) & Koser, C. (1965). Encyclical letter of the Most Reverend Constantine Koser, Vicar General O.F.M.: The media of social communication and of using them properly and to good purpose. Curia General.

Franciscans. Minister General (1967-1979 : Koser) and Costantino Koser. Encyclical Letter of the Most Reverend Constantine Koser, Vicar General O.F.M.: The Media of Social Communication and of Using Them Properly and to Good Purpose. Rome: Curia General, 1965.

Franciscans. Minister General (1967-1979 : Koser) and Costantino Koser. Encyclical Letter of the Most Reverend Constantine Koser, Vicar General O.F.M.: The Media of Social Communication and of Using Them Properly and to Good Purpose. Curia General, 1965.