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Subjects
- 4-H clubs.1
- Academic freedom.2
- Accidents.1
- Actresses.1
- Adult education.1
- Advertising--Automobiles--United States--History--20th century.1
- African Americans -- Michigan -- Detroit.1
- African Americans -- Michigan.2
- African Americans.1
- Afro-Americans -- Michigan -- Ann Arbor.1
- Afro-Americans -- Michigan -- Detroit.1
- Aged persons.1
- Agricultural machinery.1
- Agriculture -- Michigan.1
- Agriculture.1
- Air -- Pollution -- Law and legislation -- United States.1
- Air defenses.1
- Air pollution.1
- Airports.1
- Airships.1