00418cam a2200145u 4500 CarP 634 CAM 1949 A106 Or. Duerr, William A. The economic problems of forestry in the Appalachian Region. Cambridge, harvard Univ. Press, 1949. xi, 317 p. diagrs. 23 cm. Forests and forestry Forests and forestry EK 16760 16760 0 0 0 634_000000000000000_CAM_1949_A109_OR 0 71758 LBA LBA A109 2018-04-24 634 CAM 1949 A109 Or. A15086 2018-04-24 EK