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George Harlan Dungan

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Illinois hybrid corn tests 1945
Illinois Hybrid Corn Test 1944
Illinois Hybrid Corn Tests 1943
Illinois Corn Performance Tests, 1938
Illinois Corn Performance Tests, 1937
Illinois Corn Performance Tests, 1937 (Classic Reprint)
Illinois Corn Performance Tests Results For 1936
Illinois Corn Performance Tests Results For 1934
Illinois Hybrid Corn Tests 1945
Illinois hybrid corn test 1944
Illinois hybrid corn tests 1943
Illinois corn performance tests, 1938
Illinois corn performance tests, 1937
Spring Barley in Illinois (Classic Reprint)