 | Mader, Donald Lewis. dn | (1) |
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 | Mader, Donald Lewis. dn; Depth, weight, and water storage of the forest floor in white pine stands in Massachusetts / by Donald L. Mader and Howard W. Lull. Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1968. | |
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