Ugo Zanetti, Jeanne-Nicole Mellon Saint-Laurent and Nathan P. Gibson, (eds.), "The Doctrine of Addai, the apostle" in The Doctrine of Addai, the apostle last modified June 3, 2016, http://syriaca.org/bibl/1907
    
        
            
                
                    
                        Geo
                        Phillips
                    
                    The Doctrine of Addai, the apostle
                    http://syriaca.org/bibl/1907
                    446
                    http://zotero.org/groups/392292/items/DTX8E4DD
                    http://www.worldcat.org/oclc/66147174
                    
                        London
                        1876