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1Published 1977“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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2
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3Published 1963“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Government Document Serial -
4by Shigo, Alex L., 1930-“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Published 1983
Government Document Book -
5Published 1973“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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6Published 1981“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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7
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8
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9Published 1954“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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10Published 1970“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Government Document Serial -
11Published 1981“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Government Document Serial -
12
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13Published 1987“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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14Published 1980“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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15
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16Published 1977“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Government Document Serial -
17
Government Document Serial -
18Published 1977“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Government Document Serial -
19Published 1969“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
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20Published 1971“...Northeastern Forest Experiment Station (Radnor, Pa.)...”
Conference Proceeding Book