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  1. 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
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1918
  2. Bulletin of the U.S. Department of Agriculture
    Publication info: [Washington, D.C.?], Supt. of Docs., G.P.O, 1913-1923