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Report on the Work and Expenditures of the Agricultural Experiment Stations
的第
Experiment Station Record, 第 58 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1928
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Experiment Station Record, 第 54 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1927
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Experiment Station Record, 第 55 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1927
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Experiment Station Record, 第 56 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1927
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-
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Experiment Station Record, 第 57 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1927
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Experiment Station Record, 第 52 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1925
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Experiment Station Record, 第 49 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1924
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Experiment Station Record, 第 50 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1924
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Experiment Station Record, 第 51 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1924
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Experiment Station Record, 第 46 卷
United States. Office of Experiment Stations
,
United States. Agricultural Research Service
- 1923
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