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Subjects
- Immigrants -- United States.3
- Birth control.2
- Eugenics.2
- Prohibition -- United States.2
- Adult education.1
- Aeronautics.1
- African Americans.1
- Authors, American -- Michigan.1
- Birds -- Michigan.1
- Broadcasting.1
- Cities and towns -- Growth -- Michigan.1
- Citizens' associations -- Michigan.1
- Commerce and industry.1
- Conservation of natural resources -- Michigan, Northern.1
- Conservation of natural resources -- Michigan.1
- Conservation projects (Natural resources) -- Michigan, Northern.1
- Corporations.1
- Drug abuse.1
- Ecology -- Michigan.1
- Education -- United States.1