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Corvallis%2C OR %3A Cooperative Extension work in Agriculture and Home Economics%2C Oregon State College and U.S. Dept. of Agriculture cooperating%2C Dept. of Agri. Eng.
Remove constraint Publisher: Corvallis%2C OR %3A Cooperative Extension work in Agriculture and Home Economics%2C Oregon State College and U.S. Dept. of Agriculture cooperating%2C Dept. of Agri. Eng.