APA (7e ed.) Bronvermelding

ebrary, Inc, & Szechi, D. (2010). The dangerous trade: Spies, spymasters and the making of Europe. Dundee University Press.

Chicago (17e ed.) Bronvermelding

ebrary, Inc, en D. Szechi. The Dangerous Trade: Spies, Spymasters and the Making of Europe. Dundee: Dundee University Press, 2010.

MLA (9e ed.) Bronvermelding

ebrary, Inc, en D. Szechi. The Dangerous Trade: Spies, Spymasters and the Making of Europe. Dundee University Press, 2010.