APA (7th ed.) Citation

Wheatley, R. (1978). Operation Sea Lion: German plans for the invasion of England, 1939-1942. Greenwood Press.

Chicago Style (17th ed.) Citation

Wheatley, Ronald. Operation Sea Lion: German Plans for the Invasion of England, 1939-1942. Westport, Conn.: Greenwood Press, 1978.

MLA (9th ed.) Citation

Wheatley, Ronald. Operation Sea Lion: German Plans for the Invasion of England, 1939-1942. Greenwood Press, 1978.

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