[Professor Friedrich Dreyer surnud]
source                    
                    
                
journal volume number month                    
                    
1
                            
                    
year of publication                    
                    
                
pages                    
                    
lk. 32
                            
                    
subject term                    
                    
                
about the person                    
                    
                
language                    
                    
eesti
                            
                    
                            [Professor Friedrich Dreyer surnud] // Tehnika Ajakiri (1934) 1, lk. 32.