Houseweart, M.W., Rau, D.E. and Kulman, H.M., (1977), "Temperature Schedules for Overwintering Yellowheaded Spruce Sawfly Cocoons in the Laboratory", Minnesota Forestry Research Notes 259, School of Forestry, University of Minnesota
Minnesota Forestry Research Notes
Published as Scientific Journal Paper Series No. 1650 of the Minnesota Agricultural Experiment Station.
Houseweart, Mark W.; Rau, D.E.; Kulman, H.M..
Temperature Schedules for Overwintering Yellowheaded Spruce Sawfly Cocoons in the Laboratory.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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