Air raid warning system.
Contributors: United States. Office of Civilian Defense.
Publisher: California state council of defense
Published: 1941
Place of publication: [Sacramento
Language: eng
Number of pages: 18
Subjects: Air raid warning systems -- United States
Notes: "Prepared by the War department with the assistance and advice of other federal agencies, August, 1941. Issued by the United States Office of civilian defense, Washington, D. C. September 1941, no. 11."--p. [2]

Reprint of the ed. published by the Office of civilian defense.

Bound with other U.S. Office of Civilian Defense air raid pamphlets.