Stellrecht, J.W.Mohn, C.A.Cromell, Wm.2010-02-222010-02-221974-07-15Stellrecht, J.M., Mohn, C.A. and Cromell, Wm., (1974), "Productivity of White Spruce Seed Sources in a Minnesota Test Planting", Minnesota Forestry Research Notes 251, School of Forestry, University of Minnesota0544-3555https://hdl.handle.net/11299/58306en-USforests and forestryMinnesotaresearchReport