Cita APA (7a ed.)

Fleming, P. (1957). Operation Sea lion; the projected invasion of England in 1940, an account of the German preparations and the British countermeasures.

Cita Chicago Style (17a ed.)

Fleming, Peter. Operation Sea Lion; the Projected Invasion of England in 1940, an Account of the German Preparations and the British Countermeasures. New York, Simon and Schuster, 1957.

Cita MLA (9a ed.)

Fleming, Peter. Operation Sea Lion; the Projected Invasion of England in 1940, an Account of the German Preparations and the British Countermeasures. 1957.