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Author/Creator
- United States. Bureau of the Census29
- Unicon Research Corporation4
- United States. Bureau of Labor Statistics3
- United States. Bureau of the Census. Data User Services Division3
- United States. Bureau of the Census. Population Division3
- American Association of Retired Persons1
- American Demographics, Inc1
- CACI, Inc. - Federal1
- Centers for Disease Control and Prevention (U.S.)1
- Decision Research Sciences, inc1
- Gale Research Inc1
- Market Statistics (Firm)1
- National Center for Health Statistics (U.S.)1
- National Institute on Aging1
- National Planning Data Corporation1
- Population Reference Bureau1
- Public Policy Institute (American Association of Retired Persons)1
- U.S. Census Bureau, compiler1
- United States1
- United States. Bureau of the Census, compiler1