Economic Constructs in the National Income Accounts
    Published Date 
  
  
    Copyright 1970
  
  
    ISBN 0870142046
  
 
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      Copy CitationNancy D. Ruggles and Richard Ruggles, The Design of Economic Accounts (NBER, 1970), chap. 3, https://www.nber.org/books-and-chapters/design-economic-accounts/economic-constructs-national-income-accounts.