Virtual Reading Room
National Archives, RG 59, 1967-1969 Central Foreign Policy Files, Box 3029 and 1970-1973 Subject Numeric Files, Box 2961
DIA Freedom of Information Act Release.
National Security Archive Mandatory Declassification Review (MDR)
National Archives, Record Group 218, Records of Joint Chiefs of Staff, Chairman's Files, Thomas A. Moorer, box 48, SIOP, mandatory declassification review request
National Archives, Nixon Presidential Materials, NSC Files, Agency Files, Box 217, CQE I. Confidential.
NPL, NSC Files, President's Daily Briefings, box 38, Folder: President's Daily Briefs January 3-17, 1972
NPL, NSC Files, President's Daily Briefings, box 38, Folder: President's Daily Briefs January 3-17, 1972
University of New Mexico, Center for Southwest Research, Szasz Papers, Box 8, Folder 8
FOIA lawsuit, National Security Archive v. Department of State (17-cv-0770)
NPL, NSC Files, President's Daily Briefings, box 37, Folder: President's Daily Briefs December 1-16, 1971
NPL, NSC Files, President's Daily Briefings, box 37, Folder: President's Daily Briefs December 1-16, 1971
National Archives of Australia (FOIA request)
National Security Archive Mandatory Declassification Review (MDR)
Digital National Security Archive, Presidential Decision Directives, Part II