Authors: Ostry, Michael E.; Nicholls, Thomas H.
Source: Northern Journal of Applied Forestry, Volume 6, Number 4, 1 December 1989, pp. 172-174(3)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: USDA Forest Service, North Central Forest Experiment Station, 1992 Folwell Avenue, St. Paul, MN 55108
Publication date: December 1, 1989