Down, J. Langdon. <br/><br/>
Mental affections of childhood and youth :  being the Lettsomian lectures delivered before the Medical Society of London together with other papers / 
by J. Langdon Down. 
 - London :  Mac Keith Press,  1990. 
 - 185 p. ;  22 cm. 
 - Classics in developmental medicine  No.5. .
<br/><br/><label>ISBN: </label>0632029927  RM123.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental health--In infancy and childhood.<br/>Mental health--In adolescence.<br/>Child psychology.