Cahen, Claude.
Pre-Ottoman Turkey: general survey of the material and spiritual culture and history, c. 1071-1330 /
Claude Cahen ; translated from the French by J. Jones-Williams 
. - New York : Taplinger Publishing Company,  1968 
. - xx, 458 p.  ill., map.  24 cm. 
<br/>К.: Бібліогр. : c. 427-450, Index