Harcourt Paperbacks (Oct 29, 1990)            
          
                      
                  
                     |                     Paperback                  
                
              
              
            
                64 pages | 163 x 206 mm | English              
            
            
                  
                          Dewey 398.2089971
                LC Classification E99.E7 .H86 1989
                LC Control No. 89032473