About this recording 350–46 President Richard M. Nixon H. R. Haldeman White House operator Ronald L. Ziegler Charles W. Colson July 26, 1972 H. R. Haldeman White House Operator Ronald L. Ziegler Charles W. Colson Richard M. Nixon Secret White House Tapes | Richard M. Nixon Presidency 350–46 Backward Play Stop Forward Download audio Previous 752–9 Next 755–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 755–1 audio icon 28–1 audio icon 351–1 audio icon 28–2 audio icon 351–2 audio icon 351–3 audio icon 28–3 audio icon 28–4 audio icon 351–4 audio icon 28–5 audio icon