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By: Graber, Raymond E. - Northeastern Forest Experiment Station (Radnor, Pa.)Edition:Publication info: Upper Darby, Pa, U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1970Volume: no.119Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Graber, Raymond E.Type: ArticleIn: RhodoraVolume: 82Series:Issue:Date: 1980Page Range: 131--140Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects: