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New insecticides for grasshopper control
Natural history of New York
Yolo County, California
Eastern States cooperator : Vol. 22, Number 1, January 1946
Glyphosate residues in Alberta's atmospheric deposition, soils and surface waters
The small holdings of England; a survey of various existing systems
A tour through North America : together with a comprehensive view of the Canadas and United States as adapted for agricultural emigration