Changes in hardwood growing-stock tree grades
By: David L. Sonderman, Everette D. Rast
Contributors: Rast, Everette D., author; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: Research paper NE -- 608; Research paper NE (Broomall, Pa. : 1988) -- 608
Publisher: United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1987
Place of publication: Broomall, PA
Language: eng
Subjects: Hardwoods; Forest thinning; Grading
Notes: Title from title screen (viewed Sept. 18, 2013).

"November 1987."

Includes bibliographical references (page 8).