United States. Army. Air Corps. (1918). Direction finding by radio: Maximum method using 2 coils especially adapted to use on airplanes. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Direction Finding by Radio: Maximum Method Using 2 Coils Especially Adapted to Use on Airplanes. [Place of publication not identified]: [publisher not identified], 1918.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Direction Finding by Radio: Maximum Method Using 2 Coils Especially Adapted to Use on Airplanes. [publisher not identified], 1918.
Warning: These citations may not always be 100% accurate.