Montgomery, Elizabeth Rider <br/><br/>
The story behind great inventions 
Drawings by Vartanian 
 - Rev. ed. 
 -  Dodd , Mead New York  1944  [1944] 
 - 263 p. : illus. ; 22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--T
<br/><br/><label>LC Class. No.: </label>T212.M6