Nature study in seventh from - integrative course of physics and chemistry
                                            author
                                    
                                    
                                
                                            statement of authorship
                                    
                                    
E.Pärtel, T.Tenno, K.Hellat
                                                    
                                            
                                            location of publication
                                    
                                    
Tallinn
                                                    
                                            
                                            year of publication
                                    
                                    
                                
                                            pages
                                    
                                    
p. 128
                                                    
                                            
                                            language
                                    
                                    
inglise
                                                    
                                            
                                            subject term
                                    
                                    
                                
                            Pärtel, E., Tenno, T., Hellat, K. Nature study in seventh from - integrative course of physics and chemistry // 23rd Estonian Chemistry Days : abstracts of scientific conference. Tallinn, 1997. p. 128.