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- Acorns--Art1
- Adjustment (Psychology)1
- Aerial photographs1
- Agricultural laborers--Art1
- Agriculture; Farming2
- Air bases, American1
- Airships2
- Allgemeiner Deutscher Gewerkschaftsbund4
- Alps, Bavarian (Germany)--Art1
- Alte Liebe (Bremen, Germany)1
- Amblystegiaceae1
- Anacker, Heinrich, 1901-19712
- Anarchism2
- Anti-Nazi movement--Germany2
- Anti-fascist movements1
- Apiaceae1
- Apiales1
- Appointment books--Germany--Specimens1
- Arboriculture1
- Arc de Triomphe (Paris, France)1