"Issued April 2002". "POL/02-MA". The following individuals provided valuable information and/or reviewed the manuscript: Michael H. Hovland, Marilyn Huss Moore, David M. Pemberton, and JoAnn Sheperd of the U.S. Census Bureau History Staff; Constance Potter of the National Archives and Records Administration; and Ronald E. Green and Steven D. Leftwood of the U.S. Census Bureau's Library" -- Acknowledgements.
Also available via Internet from the Census Bureau website. Address as of 5/24/02: http://www.census.gov/prod/2002pubs/pol02-ma.pdf ; current access is available via PURL.