Daugherty, W. J., & Bowden, M. (2004). Executive secrets: Covert action and the presidency. University Press of Kentucky.
Dyfyniad Arddull ChicagoDaugherty, William J., and Mark Bowden. Executive Secrets: Covert Action and the Presidency. Lexington: University Press of Kentucky, 2004.
Dyfyniad MLADaugherty, William J., and Mark Bowden. Executive Secrets: Covert Action and the Presidency. University Press of Kentucky, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.