"The project that is the subject of this report was supported by contract no. YA1323-06-CN-0031 between the U.S. Census Bureau and the National Academy of Sciences"--T.p. verso
Includes bibliographical references (p. 319-331)
Includes bibliographical references
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries