Tác giả
Geological Survey (U.S.)
929
United States Congress
833
United States Bureau of the Census
317
Arkansas
304
United States Congress. House. Committee on Interstate and Foreign Commerce
290
Arkansas Geological Commission
289
United States Soil Conservation Service
253
Arkansas Agricultural Experiment Station
246
United States Congress. Senate. Committee on Commerce
212
Arkansas Soil and Water Conservation Commission
206
United States Congress. House. Committee on Public Lands
194
United States Congress. House
161
United States National Park Service
142
Federal Financial Institutions Examination Council (U.S.)
127
United States Forest Service
121
United States
107
United States War Department
100
United States Congress. Senate. Committee on Public Lands
97
Arkansas Geological Survey
93
Southern Forest Experiment Station (New Orleans, La.)
85
United States Congress. House. Committee on the Judiciary
81
Arkansas General Assembly. Legislative Council. Research Department
80
United States Department of the Interior
74
Arkansas General Assembly. Legislative Council
66
Arkansas Supreme Court
63
United States Forest Service. Southern Region
63
United States Congress. House. Committee on Rivers and Harbors
62
Haley, Boyd Raymond, 1922-
61
Holland, Terrance W
59
United States Bureau of Labor Statistics
57
Arkansas Archeological Survey
56
Arkansas Department of Education
51
Hess, Joan
51
Manning, Carolyn A
50
United States Congress. House. Committee on Public Buildings and Grounds
50
Luter, John
48
United States Congress. Senate. Committee on the Judiciary
47
U.S. Fish and Wildlife Service
46
United States Army. Corps of Engineers
44
United States Congress. House. Committee on Military Affairs
44
Arkansas General Assembly
42
United States Congress. House. Committee on Flood Control
42
United States Department of the Treasury
42
United States General Land Office
42
United States Congress. House. Committee on Interior and Insular Affairs
41
Arkansas Bureau of Mines, Manufactures, and Agriculture
40
Arkansas Office of the Secretary of State
40
United States Bureau of Mines
40
ebrary, Inc
40
St. Louis, Iron Mountain, and Southern Railway Company
39
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