Internal defects associated with pruned and nonpruned branch stubs in black walnut /
by Alex L. Shigo ... [et al.].

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Related Names
Shigo, Alex L., 1930-
Northeastern Forest Experiment Station (Radnor, Pa.)
Language(s)
English
Published
Broomall, Pa. (370 Reed Road, Broomall, Pa. 19008) : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1979.
Subjects
Eastern black walnut > Pruning.
Note
"ODC 245.1 (416.5)"
Physical Description
27 p. : ill. (some col.) ; 26 cm.
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