Author
Geological Survey (U.S.)
512
Geological Survey (U.S.),
416
SpringerLink (Online service)
95
U.S. Fish and Wildlife Service
76
United States. National Park Service
75
United States. Congress. Senate. Committee on Energy and Natural Resources
61
United States. Congress. House. Committee on Natural Resources,
52
United States. Congress. House. Committee on Resources
50
United States,
44
United States. National Park Service,
43
Nassau County (N.Y.). Department of Public Works
34
United States. Congress. Senate. Committee on Environment and Public Works
30
United States. Forest Service. Alaska Region
28
United States. National Oceanic and Atmospheric Administration
27
Rhode Island. Department of Environmental Management
26
United States. National Park Service. Natural Resource Stewardship and Science,
26
Films for the Humanities & Sciences (Firm)
25
Infobase
25
Natural Resource Program Center (U.S.),
23
Poppe, Lawrence J.
23
Coral Reef Conservation Program (U.S.),
22
ScienceDirect (Online service)
22
Suffolk County Water Authority
22
Oxford Scholarship Online
21
Rhode Island. Water Resources Board
21
United States. Congress. Senate. Committee on Energy and Natural Resources,
20
National Museum of Natural History (U.S.)
19
New York (State). Department of Environmental Conservation
19
United States. Congress. House. Committee on Natural Resources
19
United States. Department of State
19
Suffolk County (N.Y.). Department of Health Services
18
United States. Central Intelligence Agency
18
Law Library of Congress (U.S.). Global Legal Research Directorate,
17
Library of Congress. Congressional Research Service,
17
SpringerLink (Online Service)
16
United States. Environmental Protection Agency
16
United States. National Ocean Service
16
United States. National Marine Fisheries Service
15
Center of Military History
14
Smithsonian Institution. Press
14
State Geological and Natural History Survey of Connecticut
14
EBSCOhost
13
Marshall Islands
13
Pacific Islands Fisheries Science Center (U.S.),
13
United States. Administration on Aging
13
United States. Bureau of the Census
13
United States. Defense Nuclear Agency
13
Alaska Fisheries Science Center (U.S.)
12
Infobase,
12
Smithsonian Institution
12
more ...