The National Income and Its Purchasing Power
    Published Date 
  
  
    Copyright 1930
  
  
    ISBN 0870140140
  
          Copy Citation
        
                Willford I. King. 2019. The National Income and Its Purchasing Power. NBER. https://www.nber.org/books-and-chapters/national-income-and-its-purchasing-power.
            
            
         
     
    