Fir engraver
By: George Ferrell.
Contributors: United States. Forest Service.
Edition: [Rev. Sept. 1986].
Series: Forest insect & disease leaflet -- 13.
Publisher: U.S. Dept. of Agriculture, Forest Service
Published: 1986
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Fir -- Diseases and pests -- West (U.S.); Bark beetles.
Notes: Caption title.

Shipping list no.: 86-939-P.

Bibliography: p. [8].

Also issued online.