Psocids, annoying house pests
Back, E. A. (Ernest Adna)
1886-
creator
text
dcu
Washington
U.S. Govt. Print. Off.
1939]
1939
monographic
eng
4 p. 1 illus. 23 cm.
"By E.A. Back."--p. 2.
Contribution from Bureau of entomology and plant quarantine.
Psocidae
QL513.P9 B28
U.S. Dept. of agriculture. Leaflet no. 189
agr39000749
U.S. Dept. of agr. Library
940901
20260227110958.0
agr39000749