Daugherty, W. J., & Bowden, M. (2004). Executive secrets: Covert action and the presidency. University Press of Kentucky.
Lua i Stíl Chicago (17ú heag.)Daugherty, William J., agus Mark Bowden. Executive Secrets: Covert Action and the Presidency. Lexington: University Press of Kentucky, 2004.
Lua MLA (9ú heag.)Daugherty, William J., agus Mark Bowden. Executive Secrets: Covert Action and the Presidency. University Press of Kentucky, 2004.
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