Author
United States. Forest Service
67
Clarence J. Marshall Memorial Library Fund
65
Food and Agriculture Organization of the United Nations
59
British Small Animal Veterinary Association
38
ProQuest Ebook Subscriptions
29
ProQuest (Firm)
26
United States. Soil Conservation Service
26
United States. Agricultural Research Service
21
United States. Department of Agriculture
21
Pacific Northwest Research Station (Portland, Or.)
20
North Central Forest Experiment Station (Saint Paul, Minn.)
17
Tilley, Lawrence P.
16
Horst, R. Kenneth (Ralph Kenneth), 1935-
15
Plumb, Donald C.
15
Smith, Francis W. K., Jr
14
U.S. Fish and Wildlife Service
14
Bistner, Stephen I.
13
British Crop Protection Council
12
Kirk, Robert Warren, 1922-
12
American Animal Hospital Association
10
Ford, Richard B. (Veterinarian)
10
Muir, William W., III, 1946-
10
United States. Forest Service. Pacific Northwest Region
10
African Institute for Economic and Social Development
9
Dirr, Michael
9
United States. National Park Service
9
Westcott, Cynthia, 1898-1983
9
Landis, Thomas D.
8
Papich, Mark G.
8
Thomson, W. T. (William Thomas)
8
United States. Forest Service. Southern Research Station
8
American Association of Avian Pathologists
7
Bonner, F. T.
7
Henderson, A. J.
7
Merck & Co
7
Northeastern Forest Experiment Station (Radnor, Pa.)
7
Seymour, John, 1914-2004
7
Sherma, Joseph
7
Taylor, John, 1753-1824
7
United States. Environmental Protection Agency
7
United States. Environmental Protection Agency. Region VIII
7
United States. Forest Service. Southern Region
7
University of California (System). Division of Agriculture and Natural Resources
7
Birchard, Stephen J.
6
Bullard, Ervin T.
6
Drobatz, Kenneth J.
6
Federal Crop Insurance Corporation. Product Development Branch
6
Gelatt, Kirk N.
6
Huang, P. M.
6
Li, Yuncong
6
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