A. (Arabic numerals) - Documents of Polish ministries, diplomatic posts and official institutions, 1919 - 1991 A.44 The Polish Embassy to the Holy See

The Vatican and Poland, Vol. III, 8.1930 – 12.1930 A. (Arabic numerals) – Documents of Polish ministries, diplomatic posts and official institutions, 1919 – 1991 A.44 The Polish Embassy to the Holy See