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Authors: Ketcham, David E.; Wellner, Charles A.; Evans, Samuel S.
Source: Journal of Forestry, Volume 66, Number 4, 1 April 1968, pp. 329-332(4)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Chief, Silviculture Branch, Regional Office, U.S. Department of Agriculture, Forest Service, Missoula, Mont.
Publication date: April 1, 1968