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NIU Collection, Segment 2

SEGMENT: ELECTRIFICATION, FARM EQUIPMENT, & FARMING METHODS: Audio duration 11:23



NIU Collection, Segment 5

SEGMENT: CHANGES IN FARMING METHODS, ACTIVITIES, & ORGANIZATIONS: Audio duration 08:19



NIU Collection, Segment 7

SEGMENT: COMMODITY PRICES, FARMING METHODS, & FARM WORK: Audio duration 10:39



UIS Collection C-G, Segment 8

From Burning & Crop Rotation to Disking & Fertilizing: duration 01:36