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- South Dakota Agricultural Experiment Station, 3400 results
- Hansen, N.E. (Niels Ebbesen), 1866-1950, 3 results
- Richards, David, 1 results
- South Dakota State Horticulture Society, 1 results
- South Dakota State University. Department of Chemistry and Biochemistry, 1 results
- Headley, John, 1 results
- Allenwood, Keith, 1 results
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- Agriculture -- Research, 3395 results
- Alfalfa -- Varieties, 1 results
- Bromegrasses -- Research, 1 results
- Crested wheatgrass -- Research, 1 results
- South Dakota United Nations Association -- Congresses and conventions, 1 results
- Biochemistry -- Research, 1 results
- Fruit culture -- Research, 1 results
- Flowers -- Varieties -- South Dakota, 1 results
- Plant collecting, 1 results
- Plant introduction -- South Dakota, 1 results