"Letterman's Show Losing Its Voice : Television: Bill Wendell's send-off has been less than warm despite his 15-year relationship with the talk-show host".
Truy cập ngày 28 tháng 8 năm 2007.  ^ “Letterman's Show Losing Its Voice: Television: Bill Wendell's send-off has been less than warm despite his 15-year relationship with the talk-show host.”.