Chambers, William Walker.
A short history of the German language /
by W. Walker Chambers and John R. Wilkie 
. - London : Methuen & Co. Ltd.,  1970 
. - viii, 167 p.  map., tab.  21 cm. 
<br/>К.: Бібліогр. : c. 154-159 
<br/><label>  ISBN: </label>416-15980-X 416-18220-8