APA (7th ed.) Citation

Hennessy, J. A. (1970). The United States Army air arm, April 1861 to April 1917. Aerospace Historian, Dept. of History, Kansas State University.

Chicago Style (17th ed.) Citation

Hennessy, Juliette A. The United States Army Air Arm, April 1861 to April 1917. Manhattan: Aerospace Historian, Dept. of History, Kansas State University, 1970.

MLA (9th ed.) Citation

Hennessy, Juliette A. The United States Army Air Arm, April 1861 to April 1917. Aerospace Historian, Dept. of History, Kansas State University, 1970.