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Author: Graber, Raymond E.
Source: Northern Journal of Applied Forestry, Volume 5, Number 2, 1 June 1988, pp. 128-129(2)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Northeastern Forest Experiment Station, Louis C. Wyman Forestry Sciences Laboratory, P.O. Box 640, Durham, NH 03824
Publication date: June 1, 1988