Authors: Trumbull, V. Lyle; Zielinski, Edward J.; Aharrah, Ernest C.
Source: Northern Journal of Applied Forestry, Volume 6, Number 4, 1 December 1989, pp. 162-165(4)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Biology Department, Clarion University of Pennsylvania, Clarion, PA 16214
Publication date: December 1, 1989