Outdoor sound systems for public air raid warning
By: prepared by Civilian Protection Branch, United States Office of Civilian Defense.
Contributors: United States. Office of Civilian Defense.
Publisher: [U.S. G.P.O.
Place of publication: Washington, D.C
Language: eng
Number of pages: 28
Subjects: Air raid warning systems -- United States
Notes: Bound with other U.S. Office of Civilian Defense air raid pamphlets.