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Federal-state-local relations in agriculture prepared for the NPA Agriculture Committee on National Policy
Black, John Donald - 1950
Persistent link: https://www.econbiz.de/10001913658
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Research in farm labor
Black, John Donald (contributor) - 1933
Persistent link: https://www.econbiz.de/10003238795
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Future food and agriculture policy
Black, John Donald; Kiefer, Maxine Enlow - 1948 - 1. ed., 2. impression
Persistent link: https://www.econbiz.de/10001403892