Daniel L. Schwartz (eds.), "The Sixth Book of the Select Letters of Severus of Antioch" in last modified February 2, 2018, http://syriaca.org/work/10543
   
      
         
            The Sixth Book of the Select Letters of Severus of Antioch
            ܟܬܒܐ ܕܫܬܐ ܕܐܓܪ̈ܬܐ ܗܩ̈ܠܘܓܐ ܕܩܕܝܫܐ ܣܐܘܪܐ
            
               
                  Severus
                  of Antioch
                  
                — 
                  ܣܘܝܪܝܘܣ
                  ܕܐܢܛܝܘܟܝܐ
                
            
            
               
                  Athanasius
                  of Nisibis
            
               
               
                  ܐܬܢܐܣܝܘܣ
                  ܕܢܨܝܒܝܢ
                
            
            
               This collection of 123 letters was translated from Greek to Syriac in A.D. 669 by 
               Athanasius of Nisibis. 
               It comes from book six of a larger Greek collection of letters 
               that circulated under the title The Select Letters of 
               Severus of Antioch
          . 
               These were letters selected from a still larger collection of some 3824 letters called
               The Letters of Severus of Antioch
          . 
           
            http://syriaca.org/work/10543
            
            
               The Sixth Book of the Select Letters of Severus Patriarch of Antioch, vol. 1.1
               
            
            
               The Sixth Book of the Select Letters of Severus Patriarch of Antioch, vol. 1.2
               
            
            
               The Sixth Book of the Select Letters of Severus Patriarch of Antioch, vol. 2.1 
               
            
            
               The Sixth Book of the Select Letters of Severus Patriarch of Antioch, vol. 2.2 
               
            
            Brit. Mus. MSS, Add. 12,181
               
                  
               
            
            Brit. Mus. MSS, Add. 14,600
               
                  
               
            
            Laurentian Library, Cod. Pal. Med. Or. 73
               
                  
               
            
            Brit. Mus. Add. 12,154
               
                  
               
            
            Cod. Paris. Syr. 62
               
                  
               
            
            
               A Collection of Letters of Severus of Antioch from Numberous Manuscripts
               
            
            
               
                  
                     Book 6