Tree grade distribution in Allegheny hardwoods
By: Richard L. Ernst, David A. Marquis
Contributors: Marquis, David A.; United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research note NE -- 275
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1979
Place of publication: Broomall, Pa
Language: eng
Subjects: Hardwoods -- Pennsylvania; Trees -- Grading -- Pennsylvania.
Notes: Bibliography: p. 5