Public Record Office,
9
National Archives (USA),
4
Birleşik Yayınları,
3
Ministero per i Beni Culturali e Ambientali, Ufficio Centrale per i Beni Archivistici,
3
University Publications of America,
3
Ashgate,
2
Pontifical Institute of Mediaeval Studies (PIMS),
2
University of California Press,
2
Variorum,
2
Brepols,
1
21 Yayıncı daha
