Guide to the Father Alfred Boeddeker collection, 1963-1970 ML.003. The Marian Library/International Marian Research Institute.
Chicago-referens (17:e uppl.)Guide to the Father Alfred Boeddeker Collection, 1963-1970 ML.003. The Marian Library/International Marian Research Institute.
MLA-referens (8:e uppl.)Guide to the Father Alfred Boeddeker Collection, 1963-1970 ML.003. The Marian Library/International Marian Research Institute.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.