Alm, A.A.2010-02-222010-02-221974-04-15Alm, A.A., (1974), "Red Pine Tubeling Survival Related to Length of Cultural Period", Minnesota Forestry Research Notes 247, School of Forestry, University of Minnesota0544-3555https://hdl.handle.net/11299/58302Published as Scientific Journal Paper Series No. 8691 of the Minnesota Agricultural Experiment Station.en-USforests and forestryMinnesotaresearchReport