APA (7th ed.) Citation

Waller, J. H. (1996). The unseen war in Europe: Espionage and conspiracy in the Second World War. Random House.

Chicago Style (17th ed.) Citation

Waller, John H. The Unseen War in Europe: Espionage and Conspiracy in the Second World War. New York: Random House, 1996.

MLA (9th ed.) Citation

Waller, John H. The Unseen War in Europe: Espionage and Conspiracy in the Second World War. Random House, 1996.