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By: United States. Northeastern Forest Experiment Station, Upper Darby, Pa.Edition:Publication info: Upper Darby, 1955Volume: 1955Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Northeastern Forest Experiment Station, Upper Darby, Pa.Edition:Publication info: Upper Darby, 1956Volume: 1956Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Northeastern Forest Experiment Station, Upper Darby, Pa. - Ferguson, Roland H.Edition:Publication info: Upper Darby, Pa, 1959Volume: 1959Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Northeastern Forest Experiment Station, Upper Darby, Pa. - Webster, Henry H. - Stoltenberg, Carl H.Edition:Publication info: Upper Darby, 1958Volume: 1958Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: United States. Northeastern Forest Experiment Station, Upper Darby, Pa. - McGuire, John R. - Ferguson, Roland H.Edition:Publication info: Upper Darby, 1957Volume: 1957Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: