J. M. Fiey, Jeanne-Nicole Mellon Saint-Laurent and Nathan P. Gibson, (eds.), "Studi e testi." in last modified April 25, 2016, http://syriaca.org/bibl/1424
    
        
            
                
                    
                        Biblioteca apostolica vaticana
                    
                    Studi e testi.
                    http://syriaca.org/bibl/1424
                    127
                    http://zotero.org/groups/392292/items/ZRJ2795G
                    http://www.worldcat.org/oclc/1470414
                    1015-1311
                
                
                    Studi e testi.
                    
                        1900