A simple device for determining insect damage to seeds
By: by J.R. Douglass and K.E. Gibson
Contributors: Gibson, Kenneth E. (Kenneth Edward), 1905-; United States. Entomology Research Branch
Series: ARS -- 33-35; ARS (Series) (United States. Agricultural Research Service) -- 33-35.
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service
Published: 1956
Place of publication: [Beltsville, Md.?]
Language: eng
Subjects: Agricultural pests; Control; Diseases and pests; Monitoring
Notes: Caption title.

"December 1956."