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Journal of agricultural research v.18:no.1-12 (1919-1920)
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The European Frit Fly in North America
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By: Aldrich, John Merton,
Type: Article
In: Journal of agricultural research
Volume: 18
Date: 1920
Page Range: 451--472
Publication info: Washington, U.S. Govt. Printing Office, 1913-1949