ספר 269 Government Document 144 סדרון 62 כתב-עת 39 ערכה 23 לא ידוע 23 אלקטרוני 11 Thesis 4 Book Chapter 2 Conference Proceeding 2 תמונה 1 Reference Material 1 ראה את כולם ...

S - Agriculture 101 H - Social Science 54 F - General American History 14 G - Geography, Anthropology, Recreation 5 K - Law 5 A - General Works 4 C - Historical Sciences 4 P - Language and Literature 4 U - Military Science 3 L - Education 2 N - Fine Arts 2 Q - Science 2 Z - Library Science 2 E - United States History 1 ראה את כולם ...

United States Bureau of the Census 117 Cheney, Ian 16 Ellis, Curt 16 Independent Television Service 16 Mosaic Films 16 Woolf, Aaron 16 Iowa Agriculture and Home Economics Experiment Station 15 Iowa State College Agricultural and Home Economics Experiment Station 14 Bullfrog Films 13 Iowa State College Agricultural Experiment Station 13 Iowa Department of Agriculture 11 Iowa State University Cooperative Extension Service 11 Iowa Agricultural Experiment Station 9 Miller, Jeffrey K. 8 Wicked Delicate Films 8 Balcony Releasing 7 United States Bureau of Agricultural Economics 7 Colman, Gould P (Gould Patchin), 1926- 6 Iowa Crop and Livestock Reporting Service 6 Iowa State College 6 Iowa State College Cooperative Extension Service 6 Miller, Jeffrey K 6 Heady, Earl O (Earl Orel), 1916-1986 5 Iowa Dept. of Agriculture 5 Iowa State Agricultural Society 5 Iowa State University 5 United States Congress. Senate. Committee on Agriculture, Nutrition, and Forestry 5 United States Department of Agriculture 5 WoWz (Musical group) 5 Bell, Michael, 1957- 4 ראה את כולם ...

English 424 Spanish 2 French 1

Periodicals 55 Statistics 39 History 20 Documentary films 17 Nonfiction films 11 Electronic books 10 Oral histories 7 Biography 5 Correspondence 5 Feature films 5 Short films 5 Video recordings 5 Agricultural periodicals 4 Bibliography 4 Internet videos 4 Pictorial works 4 Autobiographies 3 Biographies 3 Interviews 3 Conference papers and proceedings 2 DVD-Video discs 2 Diaries 2 Documentary 2 Feature 2 Handbooks 2 Handbooks, manuals, etc 2 Personal correspondence 2 Périodiques 2 Printed ephemera 2 Records and correspondence 2 ראה את כולם ...

19th century 10 20th century 9 1929 6 1900-1999 5 1981-2001 3 1811-1876 2 1901-1989 2 1903-1992 2 20e siècle 2 -1985 1 1809-1884 1 1812-1877 1 1825-1889 1 1829-1903 1 1830-1884 1 1832-1899 1 1833-1909 1 1836-1912 1 1837-1891 1 1841-1912 1 1844-1918 1 1851-1872 1 1856-1942 1 1859- 1 1865-1950 1 1870-1929 1 1886-1942 1 1898-1977 1 1898?-1977 1 1899-2001 1 ראה את כולם ...