• publisher: Chicago, The University of Chicago press
  • creator: Butterfield, Kenyon L. (Kenyon Leech), 1868-1935
  • Keyword: Agriculture United States.
  • years: 1908.
  • pages: ix, 251 p.
  • language: eng
  • lccn: s
  • class: S441
  • notes: Partly reprinted from various periodicals.
  • download: pdf file