Photographic guide to selected external defect indicators and associated internal defects in black walnut
By: Everette D. Rast, John A. Beaton, David L. Sonderman
Contributors: Beaton, John A; Sonderman, David L; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: Research paper NE -- 617; Research paper NE (Broomall, Pa. : 1988) -- 617
Publisher: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1988
Place of publication: [Broomall, PA]
Language: eng
Number of pages: 24
Subjects: Eastern black walnut -- Pictorial works
Notes: Distributed to depository libraries in microfiche

"May 1988"--T.p. verso

Bibliography: p. 24