| ISSN (Online):             
            0046-1792 
             | 
             
             
      
            | Kraj: 
                   
         Não informado    
               | 
        
              | Wydawnictwo: 
               
                                  University of Alberta, Department of Elementary Education
                    
                   | 
 
       
              Imprenta: 
        
                    
                          Alberta, Canada:
                                          University of Alberta, Department of Elementary Education,
                          
                          1969
                           
                     
          
       | 
     
       
        
             
      
         
            
        
              | Área de numeração: 
                  
          Vol. 1 (1969)-Vol. 20 (1988)   
                    
         |