Minutes No. 17 of the meeting of the executive committee of the Sennen district Council of workers, peasants and Red Army deputies on the opening of an agricultural school on the Belitsa estate
                    
                    
                        
                                                
                            
                                                                        
                            
                                                                        
                            
                                                                            
                                
Zon. St. Arch. in Orsha. Сoll. 1358. Inv. 1. File. 4. Sht. 108, 111um., 112. Copy. Typescript