Authors: Keen, F. P.; Salman, K. A.
Source: Journal of Forestry, Volume 40, Number 11, 1 November 1942, pp. 854-858(5)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Entomologist, Berkeley, Calif., Laboratory of the Division of Forest Insect Investigations, Bureau of Entomology and Plant Quarantine
Publication date: November 1, 1942