Lewis, I.M..
Peoples of the Horn of Africa : Somali, Afar and Saho /

. - London  : International African Institute,  1955 
. - xiv, 204, [2] p. : tab., maps  24 cm. 
 - ((Ethnographic survey of Africa : North Eastern Africa ; Pt. 1) )
<br/>К.: Бібліогр. : с. 177-194.