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Mechanized thinning of northern hardwood pole stands: methods and economics.
| Authors: | Frank E. Biltonen, Wiliam A. Hillstrom, Helmuth M. Steinhilb, Richard M. Godman |
| Year: | 1976 |
| Type: | Research Paper |
| Station: | Northern Research Station |
| Source: | Research Paper NC-137. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station |
Download (PDF 7.53 MB): https://research.fs.usda.gov/download/treesearch/10658.pdf