title: [Cooperation of the Red Cross societies of the USSR and Bulgaria].
mesh_terms: D002031:Bulgaria; D049672:History, 19th Century; D049673:History, 20th Century; D007391:International Cooperation; D012011:Red Cross / Q000266:history; D014586:USSR
vernacular_title: Sotrudnichestvo obshchestv Krasnogo Kresta SSSR i Bolgarii.