Author
National Institute of Standards and Technology (U.S.),
36
Metropolitan Museum of Art (New York, N.Y.)
23
Films for the Humanities & Sciences (Firm)
18
Infobase
18
Oxford Scholarship Online
17
Geological Survey (U.S.),
13
Public Broadcasting Service (U.S.)
13
United States. Congress. House. Committee on Transportation and Infrastructure
13
United States. National Park Service
13
Infobase,
12
Juvenile Collection (Library of Congress)
11
Museum of Modern Art (New York, N.Y.)
10
United States,
10
Grill, Raymond A.,
8
National Institute of Standards and Technology (U.S.)
8
United States. National Park Service,
8
Olmsted Center for Landscape Preservation (U.S.)
7
EBSCOhost
5
National Institute of Justice (U.S.)
5
United States. Congress. House. Committee on Natural Resources,
5
Auwaerter, John E. 1964-
4
Curry, George W., 1940-
4
Geological Survey (U.S.)
4
Johnson, Duane A.,
4
Junior Ranger Program (United States. National Park Service)
4
Mohr, Nicholasa
4
Roth, Henry
4
SpringerLink (Online Service)
4
United States. Congress. House. Committee on Science
4
B, Geneva,
3
BBC Worldwide Ltd
3
Banovic, Stephen W.,
3
Clark, Mary Higgins
3
Elliott, Zetta,
3
Gann, Richard G., 1944-
3
Gayle, Frank W.,
3
Ghosh, S. K.,
3
Gross, John L.,
3
Leavy, Patricia, 1975-
3
Lew, H. S.
3
Luecke, William E.,
3
Myers, Christopher,
3
Natural Resource Program Center (U.S.),
3
New York (State). Department of Environmental Conservation
3
Razza, Joseph C.,
3
SpringerLink (Online service)
3
United States. Occupational Safety and Health Administration
3
Wharton, Edith, 1862-1937
3
Acevedo, Elizabeth,
2
Alvarez, Julia
2
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