Pei, Mario Andrew,  1901- <br/><br/>
The families of words  / 
by Mario Andrew Pei 
 - Newyork :  Harper  ,  1962 
 - 288 p.  ;  22 cm. 
<br/><br/> Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Words
<br/><br/><label>Dewey Class. No.: </label>422.09