The oyster-shell scale and the scurfy scale
By: by A.L. Quaintance and E.R. Sasscer
Contributors: Sasscer, E. R. (Ernest Ralph), b. 1883
Series: Circular / U.S. Department of Agriculture, Bureau of Entomology -- no. 121; Circular (United States. Bureau of Entomology) -- no.121.
Publisher: U.S. Dept. of Agriculture
Published: 1910
Place of publication: Washington, D.C
Language: eng
Number of pages: 15
Subjects: Oyster-shell scale; Scurfy scale
Notes: "Issued April 30, 1910."