<prompt> Translate the following text to SwahiliFor more information on the recent NIPA definitional and classificational changes, see Brent R. Moulton, Robert P. Parker, and Eugene P. Seskin, A Preview of the 1999 Comprehensive Revision of the National Income and Product Accounts, Survey of Current Business, Bureau of Economic Analysis  <response>: Kwa maelezo zaidi juu ya mabadiliko ya hivi karibuni ya ufafanuzi na uainishaji wa NIPA, angalia Brent R. Moulton, Robert P. Parker, na Eugene P. Seskin, A Preview of the 1999 Comprehensive Revision of the National Income and Product Accounts, Survey of Current Business, Bureau of Economic Analysis. 