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Subject
- Agriculture[remove]49
- Agricultural productivity18
- Women6
- Peasants5
- Authors4
- Authors, German4
- Dazhai da dui4
- Frontier and pioneer life4
- Indigenous peoples4
- Agriculture and state3
- Authors, German--Homes and haunts3
- Poultry3
- Poultry industry3
- Collective farms2
- Families2
- Haying equipment2
- History2
- Industrial productivity2
- Industries2
- Mao, Zedong, 1893-19762