Pauley, S.S., Johnson, A.G. and Santamour, F.S., Jr., (1963), "Results of Aspen Screening Tests: I. Seed Sources of Quaking Aspen (P. tremuloides Michaux)", Minnesota Forestry Notes 136, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Scientific Journal Paper Series No. 5171 of the Minnesota Agricultural Experiment Station.
Pauley, S.S.; Johnson, A.G.; Santamour, F.S. Jr..
Results of Aspen Screening Tests: I. Seed Sources of Quaking Aspen (P. tremuloides Michaux).
St. Paul, Minn. : School of Forestry, University of Minnesota.
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