Authors: Trimble, George R.; Sartz, Richard S.
Source: Journal of Forestry, Volume 55, Number 5, 1 May 1957, pp. 339-341(3)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Northeastern Forest Experiment Station, Forest Service, U. S. Department of Agriculture, Upper Darby, Pennsylvania
Publication date: May 1, 1957