Author
SpringerLink (Online service)
60
Films for the Humanities & Sciences (Firm)
38
Infobase
38
National Institute of Environmental Health Sciences
23
ScienceDirect (Online service)
21
SpringerLink (Online Service)
19
United States. Environmental Protection Agency,
15
Infobase,
13
Geological Survey (U.S.)
10
United States. Environmental Protection Agency
10
National Institute of Environmental Health Sciences,
9
Centers for Disease Control and Prevention (U.S.)
8
EBSCOhost
6
Media Policy Center (Firm)
6
National Center for Environmental Assessment (Washington, D.C.)
5
Oxford Scholarship Online
5
Video Education Australasia
5
BBC Worldwide Ltd
4
Information Television Network
4
Mexico. Secretaría de Medio Ambiente y Recursos Naturales,
4
Selinus, O.
4
United States. Agency for Toxic Substances and Disease Registry
4
United States. Environmental Protection Agency. Office of Children's Health Protection
4
Cambridge Educational (Firm)
3
Commission for Environmental Cooperation (Montréal, Québec)
3
Films for the Humanities (Firm)
3
Journeyman Pictures (Firm)
3
McKenzie, James F., 1948-
3
National Institutes of Health (U.S.)
3
Pinger, R. R.,
3
ProQuest (Firm)
3
United States. Congress. Senate. Committee on Environment and Public Works
3
United States. Environmental Protection Agency. Office of Air Quality Planning and Standards,
3
United States. Environmental Protection Agency. Office of Research and Development
3
United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response
3
ABC International
2
ABC News Productions
2
Alloway, B. J.
2
American Association for the Advancement of Science
2
Cannon, Helen L., 1911-1996
2
Centers for Disease Control and Prevention (U.S.),
2
Close, Jean-Paul, 1958-
2
Colorado. Department of Public Health and Environment
2
Commission for Environmental Cooperation (Montréal, Québec). Secretariat
2
Das, D. B. 1974-
2
Finkelman, Robert B.
2
Hopps, Howard C. 1914-
2
Integrated Environmental Management Services, S.A. de C.V.,
2
International Conference on Advances in the Field of Health, Safety, Fire, Environment, Allied Sciences & Engineering
2
International Conference on Advances in the Field of Health, Safety, Fire, Environment, Allied Sciences & Engineering Dehra Dūn, India)
2
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