Farm practice in the production of hay in Steuben County, N.Y., and Washington County, Pa. : a detailed study of the amount of labor required per acre and per ton for each operation, and the machinery charges per acre and per ton
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Farm practice in the production of hay in Steuben County, N.Y., and Washington County, Pa. : a detailed study of the amount of labor required per acre and per ton for each operation, and the machinery charges per acre and per ton
(Bulletin / U. S. Department of Agriculture, no. 641)
U.S. Dept. of Agriculture, 1918
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