Pond, George A.Ezekiel, Mordecai2014-07-032014-07-031930-12Pond, George A. 1930.Factors affecting the Physical and Economic Cost of Butterfat Production in Pine County, Minnesota. Saint Paul, MN: University of Minnesota, Agricultural Experiment Station. Bulletin 270.https://hdl.handle.net/11299/163711This 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-USNewsletter or Bulletin