Author
U.S. Fish and Wildlife Service
13
Institut national de la recherche agronomique (France)
12
American Fisheries Society
9
United States. Agricultural Research Service
7
United States. National Park Service
7
Elsevier Science (Firm)
6
Food and Agriculture Organization of the United Nations
6
United States. Forest Service
6
American Phytopathological Society
5
American Society of Agronomy
5
British Veterinary Association
5
California Agricultural Experiment Station
5
Engett, Mary Ellen
5
Society of American Foresters
5
Thorson, Lee C.
5
Agricultural History Society
4
American Society of Agricultural Engineers
4
EBSCO Publishing (Firm)
4
Entomological Society of America
4
Park Practice Program (U.S.)
4
United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs
4
United States. Department of Agriculture
4
United States. Forest Service. Intermountain Region
4
United States. National Marine Fisheries Service
4
American Dairy Science Association
3
British Grassland Society
3
CSIRO (Australia)
3
Commonwealth Forestry Association
3
Defenders of Wildlife
3
European Association for Animal Production
3
Hollrung, M. (Max), 1858-1937
3
Michigan State University. Agricultural Experiment Station
3
National Conference on State Parks
3
National Recreation and Park Association
3
SPARC (Organization)
3
ScienceDirect (Online service)
3
Thomson Gale (Firm)
3
United States. Bureau of Fisheries
3
United States. Bureau of Sport Fisheries and Wildlife
3
United States. Department of Agriculture. Economic Research Service
3
United States. Science and Education Administration
3
University of Georgia. College of Agriculture. Experiment Stations
3
Utah Agricultural Experiment Station
3
Weed Science Society of America
3
West Virginia. State Board of Agriculture
3
Wildlife Society
3
AOAC International
2
Agricultural Institute of Canada
2
Agricultural Research Communication Centre (India)
2
Agricultural Research Council of Central Africa
2
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