title: [Achievements and activities of the Society of Children's Friends].
mesh_terms: D002648:Child; D002651:Child Advocacy; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011044:Poland; D012425:Russia (Pre-1917); D012952:Societies / Q000266:history* / Q000458:organization & administration
vernacular_title: Osiagniecia i działalność Towarzystwa Przyjaciół Dzieci. Historia i osiagniecia.