[Dr. Janusz Korczak--physician, writer and author of pedagogical ideas of upbringing (author's transl)].
D002669:Child Welfare / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D010372:Pediatrics / Q000266:history*; D010686:Philosophy, Medical; D011044:Poland; D012425:Russia (Pre-1917)
Doktór Janusz Korczak--lekarz, literat i twórca pedagogicznej koncepcji wychowania.