Martin, William McChesney. "Desk Calendar, April 1969, Box 58, Folder 1" in Calendar of William McChesney Martin, Jr. (April 1969). https://fraser.stlouisfed.org/title/5195/item/457128, accessed on April 24, 2024.
Martin, William McChesney. "Desk Calendar, April 1969, Box 58, Folder 1" in Calendar of William McChesney Martin, Jr. (April 1969). https://fraser.stlouisfed.org/title/5195/item/457128, accessed on April 24, 2024.