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Start Over Author Soils Bureau Sudoc Stem A 1.9

1. Rotation of crops. Soil productivity as affected by crop rotation; [by Wilbert W. Weir].

Corporate/Agency Authors:: Soils Bureau and Agriculture Department
Publisher:: Soils Bureau
Date:: [May, 1926.]
SuDoc number:: A 1.9:1475

2. Lime. Principles of liming of soils; [by Edmund C. Shorey].

Corporate/Agency Authors:: Soils Bureau and Agriculture Department
Publisher:: Soils Bureau
Date:: [1918, reprint with changes 1924.]
SuDoc number:: A 1.9:921/1-4