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By: Leak, William B. - Riddle, Jane R. - Collins, Marilyn. - Northeastern Forest Experiment Station (Radnor, Pa.)Edition:Publication info: [Broomall, Pa.], Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, [1979]Volume: NE-INF-37-79Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: