ebrary, Inc, & Szechi, D. (2010). The dangerous trade: Spies, spymasters and the making of Europe. Dundee University Press.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, i D. Szechi. The Dangerous Trade: Spies, Spymasters and the Making of Europe. Dundee: Dundee University Press, 2010.
MLA način citiranja (9. izdanje)ebrary, Inc, i D. Szechi. The Dangerous Trade: Spies, Spymasters and the Making of Europe. Dundee University Press, 2010.
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