Grigal, D.F.2010-02-222010-02-221973-10-15Grigal, D.F., (1973), "Note on the Hydrometer Method of Particle-Size Analysis", Minnesota Forestry Research Notes 245, School of Forestry, University of Minnesota0544-3555https://hdl.handle.net/11299/58296Published as Scientific Journal Paper Series No. 8438 of the Minnesota Agricultural Experiment Station.en-USforests and forestryMinnesotaresearchReport