Alm, A.A., (1974), "Red Pine Tubeling Survival Related to Length of Cultural Period", Minnesota Forestry Research Notes 247, School of Forestry, University of Minnesota
Minnesota Forestry Research Notes
Published as Scientific Journal Paper Series No. 8691 of the Minnesota Agricultural Experiment Station.
Red Pine Tubeling Survival Related to Length of Cultural Period.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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