APA (7th ed.) Citation

MACKSEY. (1980). Invasion: The German invasion of English July 1940. Greenhill Books.

Chicago Style (17th ed.) Citation

MACKSEY. Invasion: The German Invasion of English July 1940. London: Greenhill Books, 1980.

MLA (8th ed.) Citation

MACKSEY. Invasion: The German Invasion of English July 1940. Greenhill Books, 1980.

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