Author
ProQuest (Firm)
1,325 results
SpringerLink (Online service)
1,303 results
Library of Congress. Congressional Research Service
439 results
NetLibrary, Inc
344 results
ebrary, Inc
216 results
EBSCOhost
205 results
Taylor & Francis
174 results
Royal Society of Chemistry (Great Britain)
163 results
National Science Foundation (U.S.)
111 results
Knovel (Firm)
100 results
JSTOR (Organization)
97 results
National Academy of Sciences (U.S.)
87 results
National Center for Education Statistics
84 results
United States. Congress. House. Committee on Science and Astronautics
76 results
Ebook Library
67 results
Cambridge University Press
64 results
Asimov, Isaac, 1920-1992
62 results
Educational Testing Service
57 results
National Science Teachers Association
55 results
Sage Publications
52 results
O'Sullivan, Christine Y.
51 results
Royal Society (Great Britain)
50 results
Gale (Firm)
48 results
American Association for the Advancement of Science
47 results
Walter de Gruyter & Co
47 results
United States. Congress. House. Committee on Foreign Affairs
44 results
Boyle, Robert, 1627-1691
42 results
United States. National Bureau of Standards
42 results
Bacon, Francis, 1561-1626
40 results
Cohen, Robert S.
38 results
Descartes, René, 1596-1650
37 results
National Research Council (U.S.)
35 results
United States. Congress. House. Committee on Science and Technology
34 results
United States. Congress. House. Committee on Science
33 results
Smithsonian Institution
32 results
United States. Congress. Office of Technology Assessment
32 results
Harrison, Roy M., 1948-
30 results
IGI Global Online
30 results
Unesco
30 results
United States. Congress. House. Committee on Science and Astronautics. Subcommittee on Science, Research, and Development
30 results
Wartofsky, Marx W.
29 results
Tymieniecka, Anna-Teresa
28 results
United States. Bureau of Standards
28 results
United States. Department of State
27 results
Huxley, Thomas Henry, 1825-1895
26 results
Hester, R. E. (Ronald E.)
24 results
United States. Congress. House. Committee on Science and Technology (2007-2011). Subcommittee on Research and Science Education
24 results
United States. National Aeronautics and Space Administration
24 results
Holton, Gerald James
23 results
United States. Congress. Senate. Committee on Commerce, Science, and Transportation
23 results
more…