Elm bark beetles.
Jones, Thomas H. 1885-1941.
Elm bark beetles. [By T.H. Jones ... - Washington, U.S. Govt. Print. Off., 1939] - 8 p. illus. 23 cm. - United States. Dept. of Agriculture. Leaflet no. 185 .
Contribution from Bureau of Entomology and Plant Quarantine.
agr39000579
Elm--Diseases and pests.
SB608.E5 / J6
Elm bark beetles. [By T.H. Jones ... - Washington, U.S. Govt. Print. Off., 1939] - 8 p. illus. 23 cm. - United States. Dept. of Agriculture. Leaflet no. 185 .
Contribution from Bureau of Entomology and Plant Quarantine.
agr39000579
Elm--Diseases and pests.
SB608.E5 / J6