TY  - BOOK
AU  - Wickman,Boyd E.
TI  - Fir tree borer,
PY  - 1968///
CY  - [Washington
PB  - U.S. Govt. Print. Off.]
KW  - Semanotus litigiosus
KW  - Fir
KW  - Diseases and pests
KW  - Pests
N1  - Caption title; Bibliography: p. 5
ER  -