* Sinclair, Andrew. ''The Available Man: The Life behind the Masks of Warren Gamaliel Harding'' (1965) [http://www.questia.com/PM.qst?a=o&d=8550753 online full-scale biography] | * Sinclair, Andrew. ''The Available Man: The Life behind the Masks of Warren Gamaliel Harding'' (1965) [http://www.questia.com/PM.qst?a=o&d=8550753 online full-scale biography] |