How children develop ;    a revision of Child development study. 

 - Columbus, Ohio, :    The Ohio State University,    1946. 
 - v, 79 p. :    front., ill. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Child development.<br/> Growth.
<br/><br/><label>Dewey Class. No.: </label>305.231