APA (7th ed.) Citation

United States. Office of Civilian Defense. (1943). Regulations No. 4: United States Citizen Corps Service. [s.n.].

Chicago Style (17th ed.) Citation

United States. Office of Civilian Defense. Regulations No. 4: United States Citizen Corps Service. [Washington]: [s.n.], 1943.

MLA (8th ed.) Citation

United States. Office of Civilian Defense. Regulations No. 4: United States Citizen Corps Service. [s.n.], 1943.

Warning: These citations may not always be 100% accurate.