On June 22, 1971, President Richard M. Nixon, John D. Ehrlichman, Stephen B. Bull, Ronald L. Ziegler, Linwood Holton, Louie B. Nunn, Edwin L. Harper, Alexander P. Butterfield, Henry A. Kissinger, and Vice President Spiro T. Agnew met in the Oval Office of the White House from 3:42 pm to 5:06 pm. The Oval Office taping system captured this recording, which is known as Conversation 527-009 of the White House Tapes. Participants: Nixon, Richard M. (President); Ehrlichman, John D.; Bull, Stephen B.; Ziegler, Ronald L.; Holton, Linwood; Nunn, Louie B.; Harper, Edwin L.; Butterfield, Alexander P.; Kissinger, Henry A.; Agnew, Spiro T. (Vice President).
- Part of White House Tapes: Sound Recordings of Meetings and Telephone Conversations of the Nixon Administration, Oval Office Sound Recordings