About this recording 28–7 President Richard M. Nixon White House operator July 28, 1972 White House Operator Richard M. Nixon Conversation No. 28-7 Date: July 28, 1972 Time: Unknown between 8:33 am and 11:06 am Location: White House Telephone The President talked with the White House operator. [See Conversation No. 756-4] Request for a call to Tricia Nixon Cox Secret White House Tapes | Richard M. Nixon Presidency 28–7 Backward Play Stop Forward Download audio Previous 351–9 Next 198–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 198–1 audio icon 138–3 audio icon 138–4 audio icon 138–5 audio icon 138–6 audio icon 138–7 audio icon 138–8 audio icon 138–10 audio icon 198–10 audio icon 138–11 audio icon