Author
United States. Bureau of the Census
1,236
National Center for Health Statistics (U.S.),
1,057
National Center for Education Statistics
987
National Center for Health Statistics (U.S.)
640
United States. Bureau of Labor Statistics
607
Geological Survey (U.S.)
344
United States. Bureau of Labor Statistics,
330
United States. Bureau of Justice Statistics
282
United States. Department of Agriculture. Economic Research Service
195
Educational Testing Service
191
U.S. Census Bureau,
188
United States. Bureau of Mines
185
United States. Bureau of Justice Statistics,
158
U.S. Census Bureau
155
Educational Resources Information Center (U.S.)
133
Colorado. State Demography Office
123
National Center for Education Statistics,
118
United States. Office of Educational Research and Improvement
115
Geological Survey (U.S.),
101
Ballator, Nada
92
Jerry, Laura
92
United States. Department of Agriculture. Economic Research Service,
92
United States. Office of Juvenile Justice and Delinquency Prevention
85
Institute of Education Sciences (U.S.)
80
National Assessment of Educational Progress (Project)
79
Centers for Disease Control and Prevention (U.S.)
78
United States. Public Health Service,
76
Library of Congress. Congressional Research Service,
70
Colorado Agricultural Experiment Station
65
United States. Office of Educational Research and Improvement. Center for Education Statistics
65
Colorado State University. Department of Soil and Crop Sciences
64
United States. Forest Service. Northern Research Station,
63
Colorado. Department of Higher Education. Division of Information & Research Management
62
United States. Bureau of the Census. Data User Services Division
62
United States. Bureau of the Census. Population Division
62
Colorado. Health Statistics Section
61
United States. National Agricultural Statistics Service
60
American Community Survey (U.S.)
59
Miller, Richard K. 1946-
57
National Science Foundation (U.S.)
56
Richard K. Miller & Associates,
56
Health Information National Trends Survey,
55
Washington, Kelli D.,
55
Roberts, Jean, 1918-
54
United States. Substance Abuse and Mental Health Services Administration. Office of Applied Studies
52
O'Sullivan, Christine Y.
51
Reese, Clyde M.
51
SpringerLink (Online Service)
51
National Institute of Justice (U.S.)
49
Carr, Peggy
48
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