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Author: Wall, Ron E.
Source: Northern Journal of Applied Forestry, Volume 7, Number 1, 1 March 1990, pp. 17-19(3)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Pacific Forestry Centre, 506 West Burnside Road Victoria, B.C., Canada, V8Z 1M5
Publication date: March 1, 1990