Gibbons, Herbert Adams 1880-1934.
The foundation of the Ottoman Empire: a history of the Osmanlis up to the death of Bayezid I, 1300-1403 /
Herbert Adams Gibbons 
. - London : Frank Cass & Co. Ltd.,  1968 
. - 379 p.  map.  23 cm. 
 - Islam and the Muslim world  no. 9 .
<br/>К.: Бібліогр. : c. 319-368, Index