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1
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2af Schultz, Robert P.“...Dept. of Agriculture, Forest Service ;...”
Udgivet 1997
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3
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4Udgivet 1988“...United States Dept. of Agriculture, Forest Service,...”
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5Udgivet 2001“...USDA Forest Service, Southern Research Station,...”
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6
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7Udgivet 1963“...Southern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture,...”
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8Udgivet 1963“...Dept. of Agriculture, Forest Service,...”
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9Udgivet 1963“...Dept. of Agriculture, Forest Service, Southern Forest Experiment Station,...”
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10Udgivet 1968“...Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station,...”
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11
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12Udgivet 1968“...Southern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture,...”
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13Udgivet 1963“...Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station,...”
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