« Previous
Next »
Author/Creator
- United States99
- ebrary, Inc93
- National Center for Education Statistics81
- Geological Survey (U.S.), issuing body55
- Reese, Clyde M.53
- United States. Congress. House. Committee on Science44
- United States. Office of Educational Research and Improvement42
- United States. Congressional Budget Office38
- National Assessment of Educational Progress (Project)31
- Eisenhower National Clearinghouse for Mathematics and Science Education28
- Geological Survey (U.S.)27
- National Research Council (U.S.). Mathematical Sciences Education Board27
- Rand Corporation26
- United States. Department of Agriculture. Economic Research Service26
- Educational Testing Service21
- National Science Foundation (U.S.)20
- United States. Congress. House. Committee on Naval Affairs20
- United States. Congressional Budget Office, issuing body19
- National Renewable Energy Laboratory (U.S.), issuing body18
- United States. General Accounting Office17