Photographic guide of selected external defect indicators and associated internal defects in sugar maple
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 -- 647; Research paper NE (Broomall, Pa. : 1988) -- 647
Publisher: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1991
Place of publication: [Radnor, Pa.]
Language: eng
Number of pages: 35
Subjects: Sugar maple -- Wisconsin -- Pictorial works
Notes: Shipping list no.: 91-412-P

"May 1991"--T.p. verso

Includes bibliographical references (p. 35)