APA (7e ed.) Bronvermelding

Wires, R. (1999). The Cicero spy affair: German access to British secrets in World War II. Praeger.

Chicago (17e ed.) Bronvermelding

Wires, Richard. The Cicero Spy Affair: German Access to British Secrets in World War II. Westport, Conn.: Praeger, 1999.

MLA (9e ed.) Bronvermelding

Wires, Richard. The Cicero Spy Affair: German Access to British Secrets in World War II. Praeger, 1999.