Winters, L.M.Kiser, O.M.Jordan, P.S.Peters, W. H.2014-07-072014-07-071935-06Winters, L.M. et al. 1935. A Six Years' Study of Crossbreeding Swine. Saint Paul, MN: University of Minnesota Agricultural Experiment Station. Bulletin 320.https://hdl.handle.net/11299/163789This archival publication may not reflect current scientific knowledge or recommendations. Current information available from University of Minnesota Agricultural Experiment Station: http://www.maes.umn.edu/en-USA Six Years' Study of Crossbreeding SwineNewsletter or Bulletin