The Hall scale eradication project
By: E.H. Forsen, A.W. Cressman, and H.M. Armitage
Contributors: Cressman, A. W. (Albert Wallace), 1900-; Armitage, H. M. (Horace Morton), 1890-
Series: Circular / United States Department of Agriculture -- no. 920; Circular (United States. Dept. of Agriculture) -- no. 920.
Publisher: U.S. Dept. of Agriculture
Published: 1953
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Scale insects; Control; Fruit; Diseases and pests
Notes: Caption title.

Bibliography: p. 16.