About this recording 477–14 President Richard M. Nixon William P. Rogers White House operator Tricia Nixon Cox Ronald L. Ziegler Manolo Sanchez April 12, 1971 William P. Rogers White House Operator Tricia Nixon Cox Ronald L. Ziegler Manolo Sanchez Richard M. Nixon Secret White House Tapes | Richard M. Nixon Presidency 477–14 Back 10s Play/Pause Skip 10s 0:00 Download audio Previous 949–9 Next 450–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 450–1 audio icon 47–1 audio icon 450–10 audio icon 450–11 audio icon 450–12 audio icon 450–13 audio icon 450–14 audio icon 450–15 audio icon 450–16 audio icon 450–17 audio icon