Rand McNally and Company. "July 1931 : Introductory Material," Rand McNally Bankers Directory (July 1931). https://fraser.stlouisfed.org/title/105/item/598415/content/pdf/rmbd_193107_01_introductorymaterial, accessed on April 18, 2024.
Rand McNally and Company. "July 1931 : Introductory Material," Rand McNally Bankers Directory (July 1931). https://fraser.stlouisfed.org/title/105/item/598415/content/pdf/rmbd_193107_01_introductorymaterial, accessed on April 18, 2024.