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close this section of the libraryTrimble, George R. cn(1)
View the documentTrimble, George R. cn; The regeneration of central Appalachian hardwoods with emphasis on the effects of site quality and harvesting practice / by G.R. Trimble, Jr. Upper Darby, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1973.