Subject
- Agriculture--Economic aspects.3
- Agriculture--Egypt.1
- Agriculture--England.2
- Agriculture--France.2
- Agriculture--Hungary.1
- Agriculture--India.1
- Agriculture--Iraq.1
- Agriculture--Italy.2
- Agriculture--Japan.4
- Agriculture--Kansas.2
- Agriculture--Louisiana.1
- Agriculture--Mexico.4
- Agriculture--Middle West.1
- Agriculture--Montana.2
- Agriculture--Oregon.1
- Agriculture--Taiwan.2
- Agriculture--Thailand.1
- Agriculture--United States--History.2
- Agriculture--United States.22
- Agriculture--Virginia.1