NIPA estimates beginning with 1929, including the revised estimates presented in this article, are available on computer diskettes for $40.00, product no. NDN0139. To order using MasterCard or Visa, contact the BEA Order Desk at 18007040415 (outside the United States, call 2026069666). To order by mail, send a check payable to "Bureau of Economic Analysis BE-53" to BEA Order Desk (BE-53), Bureau of Economic Analysis, Washington, DC 20230. These estimates are also available through the Commerce Department's STAT-USA Internet service; for information, call 2024821986, or access the STAT-USA Internet site at <http://www.stat-usa.gov/stat-usa.html>.