TY  - BOOK
AU  - Jones,Thomas H.
TI  - Elm bark beetles
T2  - United States. Dept. of Agriculture. Leaflet
AV  - SB608.E5 J6
PY  - 1939///]
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Elm
KW  - Diseases and pests
N1  - Contribution from Bureau of Entomology and Plant Quarantine
ER  -