Thomas A. Carlson (ed.), "Ocean" in last modified August 9, 2017, http://syriaca.org/place/2930
   
      
         
            
               Ocean
               بحر أوقيانوس
               The body of water thought to surround the dry land of Afro-Eurasia
               
                  Attestation of name بحر أوقيانوس in the 
                        Kitāb al-aʿlāq al-nafīsa of Aḥmad ibn ʿUmar Ibn Rustah.
                  
               
                    
               http://syriaca.org/place/2930
               https://en.wikipedia.org/wiki/World_Ocean
               https://dbpedia.org/resource/World_Ocean
               
                  Kitāb al-aʿlāq al-nafīsa
                  
              Aḥmad ibn ʿUmar Ibn Rustah
            
                  
                  83