Rich, Joseph; Robert A. Kengle; Jon Greenbaum; David J. Becker; Bruce Adelson; Toby Moore (June 12, 2007). "Letter to Reject Hans von Spakovsky". (via Talking Points Memo Document Collection). Retrieved June 14, 2007.
Rich, Joseph; Robert A. Kengle; Stephen B. Pershing; Jon Greenbaum; David J. Becker; Bruce Adelson; Toby Moore (June 19, 2007). "Letter to Reject Hans von Spakovsky". (via Talking Points Memo Document Collection). Archived from the original on June 25, 2007. Retrieved June 20, 2007.
Rich, Joseph; Robert A. Kengle; Stephen B. Pershing; Jon Greenbaum; David J. Becker; Bruce Adelson; Toby Moore (June 19, 2007). "Letter to Reject Hans von Spakovsky". (via Talking Points Memo Document Collection). Archived from the original on June 25, 2007. Retrieved June 20, 2007.