1978

• Letter to H.Em. Card. Opilio Rossi, on the 25th anniversary of episcopal ordination (December 8, 1978)
  [Latin]
   
• Letter to H. Em. Card. Egidio Vagnozzi on the 50th anniversary of priesthood (December 7, 1978)
  [English, Italian, Latin]

• Letter to the Bishop of Leeds on the first centenary of the Diocese of Leeds (December 4, 1978)
  [English, Italian, Latin, Spanish]
   
• Message to Dr. Kurt Waldheim, Secretary-General of the United Nations Organization (December 2, 1978)
  [English, Italian, Portuguese, Spanish]
   
• Letter to the Archbishop of Esztergom and to the Bishops of Hungary (December 2, 1978)
  [Italian, Latin, Portuguese, Spanish]

• Letter to the Archbishop of Montevideo (November 27, 1978)
  [English, Italian, Portuguese, Spanish]
   
• Letter to H.Em. Card. Joseph Parecattil, on the 25th anniversary of episcopal ordination (13 novembre 1978)
  [Latin]
   
• Letter to H.Em. Card. James Robert Knox, on the  25th anniversary of episcopal ordination (November 6, 1978)
  [Latin]

• Letter to Card. Jean Villot (October 24, 1978)
  [English, Italian, Portuguese, Spanish]

• Letter to the People of Poland (October 23, 1978)
  [English, Italian, Portuguese, Spanish]

• Letter to H. Em. Card. Joseph Schröffer on the 50th anniversary of priestly ordination (October 23, 1978)
  [English, Italian, Latin]
   
• Letter to H.Em. Card. Alexandre Charles Renard, on the 25th anniversary of episcopal ordination (October 18, 1978)
  [Latin]