Manson, Philip W.Miller, Dalton G.2014-07-212014-07-211954-05Manson, P.W., Miller D.G. 1954. Making Durable Concrete Drain Tile on Packer-Head Machines. Saint Paul, MN: University of Minnesota Agricultural Experiment Station. Bulletin 426.https://hdl.handle.net/11299/164090This 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