Hajdu, Peter..
Finno-Ugrian languages and peoples /
translated and adapted by G.F. Cushing. 
. - London  : Andr ̌Deutsch Limited,  1975 
. - 254 p. : tab., map.  22 cm. 
 - ((Language Library) )
<br/>К.: Бібліогр. : с. 236-243. 
<br/><label>  ISBN: </label>0-233-96552-1