* Dean, John ; Schlesinger, Arthur M. Warren Harding ( The American President Series ), Times Books, 2004, ISBN 0-8050-6956-9
* Dean, John ; Schlesinger, Arthur M. Warren Harding ( The American President Series ), Times Books, 2004.
* Dean, John ; Schlesinger, Arthur M. Warren Harding ( The American President Series ), Times Books, 2004.
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