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Provisional grade specifications for hardwood growing stock trees

Informally Refereed
Download (PDF 854 KB): https://research.fs.usda.gov/download/treesearch/3915.pdf

Citation

Boyce, Stephen G.; Carpenter, Roswell D. 1968. Provisional grade specifications for hardwood growing stock trees. Res. Pap. NE-97. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 12 p.