Pei, Mario,  1901- <br/><br/>
The families of words / 
By Mario Pei. 
 - 1st ed. 
 - New York :  Harper & Brothers Publishers,  1962. 
 - 288 p.  22 cm. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>0404079296 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Etymology