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21
A technique to artificially infest beech bark with the beech scale Cryptococcus fagisuga (Lindinger) /
by Houston, David R., 1932-
[Broomall, Pa.] : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1982

Government Document Book
22
An econometric model of the hardwood lumber market /
by Luppold, William G.
[Broomall, Pa.] : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1982

Government Document Book
23
A guide to hardwood log grading /
by Rast, Everette D.
Upper Darby, PA. : Forest Service, U.S. Department of Agriculture, Northeastern Forest Experiment Station, 1973
Revised.

Government Document Book
24
Age and stem origin of Appalachian hardwood reproduction following a clearcut and herbicide treatment /
[Broomall, Pa.] : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986

Government Document Book
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