Laird, Helene. <br/><br/>
The tree of language / 
by Helene and Charlton Laird. Illustrated by Ervine Metzl. 
 - Cleveland :  World,  1957. 
 - 233 p. :  ill. 
<br/><br/><label>LCCN: </label>56009259 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language.<br/>Language and languages.
<br/><br/><label>Dewey Class. No.: </label>400