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1Published 1984“...the Service,...”
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2
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3
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4
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5Published 1982“...Westland Conservancy, New Zealand Forest Service,...”
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6Published 1986“...N.Z. Forest Service ; Dept. of Lands and Survey,...”
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7Published 1971“...Northeastern Forest Experiment Station, Forest Service, U.S. Department of Agriculture,...”
Conference Proceeding Book