The spruce beetle. -
Contributors: Beckwith, Roy C.
Edition: Slightly rev. Feb. 1975. -
Series: U.S. Forest Service. Forest pest leaflet ; 127
Publisher: U.S. Govt. Print. Off.]
Published: 1975
Place of publication: [Washington
Language: eng
Subjects: Dendroctonus rufipennis
Notes: Bibliography: p. 7.