APA (7th ed.) Citation

Koch, H. W. (1991). The strategic air offensive against Germany: The early phase, May - September 1940. The historical journal.

Chicago Style (17th ed.) Citation

Koch, Hansjoachim W. "The Strategic Air Offensive Against Germany: The Early Phase, May - September 1940." The Historical Journal 1991.

MLA (8th ed.) Citation

Koch, Hansjoachim W. "The Strategic Air Offensive Against Germany: The Early Phase, May - September 1940." The Historical Journal, 1991.

Warning: These citations may not always be 100% accurate.