Stewart, D.M. and Ritter, L.B., (1962), "A White Pine Stand 17 Years after Control of Blister Rust", Minnesota Forestry Notes 114, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Scientific Journal Paper Series No. 4834 of the Minnesota Agricultural Experiment Station.
Stewart, Donald M.; Ritter, L.B..
A White Pine Stand 17 Years after Control of Blister Rust.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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