United States. Army. Air Corps. (1927). Civilian personnel: Retirement, employees whose terms of service shall include fifteen or more years in tropics. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Civilian Personnel: Retirement, Employees Whose Terms of Service Shall Include Fifteen or More Years in Tropics. Washington: [publisher not identified], 1927.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Civilian Personnel: Retirement, Employees Whose Terms of Service Shall Include Fifteen or More Years in Tropics. [publisher not identified], 1927.
Warning: These citations may not always be 100% accurate.