Psocids, annoying house pests ...
Series: U.S. Dept. of agriculture. Leaflet; no. 189
Publisher: U.S. Govt. Print. Off.
Published: 1939
Place of publication: [Washington
Language: eng
Subjects: Psocidae.
Notes: "By E.A. Back."--p. 2.
Contribution from Bureau of entomology and plant quarantine.