Tapholes in sugar maples: what happens in the tree
By: by Russell S. Walters and Alex L. Shigo.
Contributors: Shigo, Alex L., 1930-; United States. Forest Service.
Series: Forest Service General Technical Report -- NE-47
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Place of publication: Broomall, Pa
Number of pages: 12
Subjects: Maple sugar.; Sugar maple.
Notes: Bibliography: p. 11-12.