Pauley, S.S. and Mohn, C.A., (1971), "Selective Defoliation by the Yellow-Headed Spruce Sawfly", Minnesota Forestry Research Notes 229, School of Forestry, University of Minnesota
Minnesota Forestry Research Notes
Published as Scientific Journal Paper Series No. 7504 of the Minnesota Agricultural Experiment Station.
Pauley, S.S.; Mohn, C.A..
Selective Defoliation by the Yellow-Headed Spruce Sawfly.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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