Author
Library of Congress. Congressional Research Service,
6,151
Geological Survey (U.S.)
346
National Agricultural Library (U.S.)
220
Doyle, Charles,
159
Geological Survey (U.S.),
139
Library of Congress. Congressional Research Service
107
Labonte, Marc,
77
EBSCOhost
76
Library of Congress. Science, Technology, and Business Division. Science Reference Services,
70
Gravelle, Jane,
69
Sherlock, Molly F.,
67
Straus, Jacob R.,
57
Lynch, Megan Suzanne,
56
O'Rourke, Ronald,
56
ScienceDirect (Online service)
55
Educational Resources Information Center (U.S.)
53
Schnepf, Randall Dean, 1954-
52
Library of Congress. National Library Service for the Blind and Physically Handicapped
51
McCarty, Maggie,
51
Painter, William L. (Specialist in homeland security and appropriations),
51
Schneider, Judy,
51
Davis, Christopher M., 1966-
47
Library of Congress
46
Sargent, John F.,
46
Ramseur, Jonathan L.,
45
Falk, Gene,
44
Hardy Vincent, Carol,
44
Monke, James,
44
Webel, Baird,
44
Johnson, Renée (Specialist in agricultural policy),
43
Saturno, James,
43
Epstein, Susan B.,
41
Finklea, Kristin M.,
41
Marples, Donald,
41
Rybicki, Elizabeth,
41
U.S. Atomic Energy Commission
41
Brudnick, Ida A.,
40
Garrett, R. Sam, 1977-
40
Carter, Nicole T.,
39
Feickert, Andrew,
39
National Institute of Standards and Technology (U.S.)
39
Sheikh, Pervaze A.,
39
Stern, Charles V.,
39
Hoover, Katie,
38
James, Nathan
37
Martin, Michael F.,
37
Isaacs, Katelin P., 1980-
36
Keightley, Mark P.,
36
McMillion, Barry J.,
36
Peterman, David Randall,
36
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