 | White pine Massachusetts. | (2) |
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 | Depth, weight, and water storage of the forest floor in white pine stands in Massachusetts / by Donald L. Mader and Howard W. Lull. Mader, Donald Lewis. dn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1968. | |
| Low density management : a means to increase timber yields while using less soil moisture / by Fred M. Hunt and Donald L. Mader. Hunt, Fred M. 4n Amherst, Mass. : Massachusetts Agricultural Experiment Station, 1970. | |
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