Authors: Heller, Robert C.; Schmiege, Donald C.
Source: Journal of Forestry, Volume 60, Number 8, 1 August 1962, pp. 525-532(8)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Entomologist, Lake States Forest Expt. Sta., Forest Service, U.S. Dept. Agric., St. Paul, Minn.
Publication date: August 1, 1962