United States. Federal Open Market Committee. "Meeting, April 14, 1964 : Agenda," Federal Open Market Committee Meeting Minutes, Transcripts, and Other Documents (April 14, 1964). https://fraser.stlouisfed.org/title/677/item/22881/content/pdf/FOMC19640414Agenda, accessed on August 10, 2020.
This collection of meeting documents contains memos released by FOIA request.
Board of Governors of the Federal Reserve System