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 | Fifteen-year results from six cutting methods in second-growth northern hardwoods / Gayne G. Erdmann and Robert R. Oberg. Erdmann, Gayne G. cn : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973. | |
| Choosing forest residues management alternatives / John M. Pierovich and Richard C. Smith. Pierovich, John M. Portland Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973. | |
| Timber management and economic analysis, a case study / Henry H. Webster. Webster, Henry H., 1930- Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1963. | |
| Thinning red pine for high investment returns / Allen L. Lundgren. Lundgren, Allen L. cn : Lake States Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1965. | |
| The "let-it-grow" treatment for timber : is it economically worthwhile? / by David P. Worley. Worley, D. P. (David Perry), 1921- Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1970. | |
| Forestry returns evaluated for uneven-aged management in two Appalachian woodlots / by Orris D. McCauley George R. Trimble, Jr. McCauley, Orris D. Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1972. | |
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