Keller, Rudi  . <br/><br/>
On language change : the invisible hand in language /  
Rudi Keller ; translated by Brigitter Norlich. 
 - London :   Routledge ,   1994. 
 - xi, 182p. :   Pict. ;   18cm .  
<br/><br/>Include index 
<br/><br/><label>ISBN: </label>0415076714  UKP 12.99 
<br/><br/><label>Subjects--Index Terms: </label>LINGUISTICS 
<br/><br/><label>Dewey Class. No.: </label>417.7  / KEL/O