United States. Army. Air Corps. (1918). Index to bulletins 251-300, July 28-Aug. 18, 1917, of Information Section, Air Division, Washington. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Index to Bulletins 251-300, July 28-Aug. 18, 1917, of Information Section, Air Division, Washington. [Place of publication not identified]: [publisher not identified], 1918.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Index to Bulletins 251-300, July 28-Aug. 18, 1917, of Information Section, Air Division, Washington. [publisher not identified], 1918.
Warning: These citations may not always be 100% accurate.