Barber, J.C. and Steward D.M., (1957), "Vacuum Storage of Pollen Proves Feasible ", Minnesota Forestry Notes 62, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Scientific Journal Paper Series No. 3812 of the Minnesota Agricultural Experiment Station.
This study was made possible by a grant from the Charles K. Blandin Foundation of
Grand Rapids, Minnesota.
Barber, John C.; Stewart, Donald M..
Vacuum Storage of Pollen Proves Feasible.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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