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Subject
- Agricultural productivity[remove]26
- Agriculture18
- Peasants6
- Women4
- Agriculture and state3
- Dazhai da dui3
- Education2
- Industrial productivity2
- Literacy2
- Reading rooms2
- Terracing2
- Agricultural industries--Government policy1
- Calligraphy, Chinese1
- Children1
- China. Zhongguo ren min jie fang jun1
- Civil-military relations1
- Collective farms1
- Communes (China)1
- Dams--Design and construction1
- Fish culture1