Haugen, Einar . <br/><br/>
The Ecology of Language: Essays /  Textual Documents 
Einar Haugen. 
 - 1st ed. / 
 - California :  Stanford University Press ,  ©1972. 
 - xi,366p. ;  22cm. 
<br/><br/><label>Subjects--Index Terms: </label>English language Ecology of Language G-Languages 
<br/><br/><label>Dewey Class. No.: </label>420  / D 57 Ec