United States. Office of Civilian Defense.
Introduction to the Army : Suggestions for Pre-Induction Informational Meetings, OCD Publication 3633 ,
Washington, D.C.:
U.S. Office of Civilian Defense, with the cooperation of the War Dept., Selective Service System, U.S. Office of Education,
February 1944, https://fraser.stlouisfed.org/title/9574,
accessed on October 17, 2025.