Martin, William McChesney. "Desk Calendar, February 1968, Box 57, Folder 4" in Calendar of William McChesney Martin, Jr. (February 1968). https://fraser.stlouisfed.org/title/5195/item/457396, accessed on April 25, 2024.
Martin, William McChesney. "Desk Calendar, February 1968, Box 57, Folder 4" in Calendar of William McChesney Martin, Jr. (February 1968). https://fraser.stlouisfed.org/title/5195/item/457396, accessed on April 25, 2024.