Sellassie, Sergew Hable. <br/><br/>
Ancient and medieval Ethiopian history to 1270. 

 - Addis Ababa :  [United Printers],  1972. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Ethiopia -- History -- To 1490.--Ethiopia -- History -- To 1490.--Ethiopia -- History -- To 1490.