Doyle, W. (1999). Inside the Oval Office: The White House tapes from FDR to Clinton. London House.
Dyfyniad Arddull ChicagoDoyle, William. Inside the Oval Office: The White House Tapes from FDR to Clinton. London: London House, 1999.
Dyfyniad MLADoyle, William. Inside the Oval Office: The White House Tapes from FDR to Clinton. London House, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.