The camphor scale
By: by A.W. Cressman and H.K. Plank
Contributors: Plank, H. K. (Harold Kaufman), 1891-
Series: Circular / United States Department of Agriculture -- no. 365; Circular (United States. Dept. of Agriculture) -- no. 365.
Publisher: U.S. Dept. of Agriculture
Published: 1935
Place of publication: Washington, D.C
Language: eng
Number of pages: 20
Subjects: Scale insects; Control; Camphor tree; Diseases and pests
Notes: "Contribution from Bureau of Entomology and Plant Quarantine."

Bibliography: p. 19.