Spurr, S.H. and Allison, J.H., (1952), "Growth of Mature Red Pine ", Minnesota Forestry Notes 9, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Scientific Journal Series Paper No. 2911 of the Minnesota Agricultural
Spurr, Stephen H.; Allison, J.H..
Growth of Mature Red Pine.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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