Mangold, George B.  b. 1876 <br/><br/>
Problems of child welfare / 
by George B. Mangold. 
 - New York :  Macmillan,  1950. 
 - xvi, 549 p ;  19 cm. 
 - Social science text-books. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label> USD 5.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child welfare