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By: North Central Forest Experiment Station (Saint Paul, Minn.) - Massengale, Robert A. - Roussopoulos, Sue M. - Spencer, John S.Edition:Publication info: St. Paul, Minn, U.S. Dept. of Agriculture, 1992Volume: no.139Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: