APA (7th ed.) Citation

United States. Army. (1921). First course in general education: Manual for teachers. Education and Recreation Special School.

Chicago Style (17th ed.) Citation

United States. Army. First Course in General Education: Manual for Teachers. Camp Grant, Ill.: Education and Recreation Special School, 1921.

MLA (9th ed.) Citation

United States. Army. First Course in General Education: Manual for Teachers. Education and Recreation Special School, 1921.