Pine engraver, Ips pini, in the western states
By: Charles Sartwell, R.F. Schmitz, and W.J. Buckhorn
Contributors: Schmitz, R. F.; Buckhorn, W. J.; United States. Forest Service
Series: Forest pest leaflet -- 122; Forest insect & disease leaflet -- 122.
Publisher: Dept. of Agriculture, Forest Service
Published: 1971
Place of publication: Washington, D.C.?]
Language: eng
Subjects: Ips
Notes: Caption title.

"July 1971."

Includes bibliographical references (p. 5).