Poulsen, Karen. “Clyde W. Phelps: Retail Credit Fundamentals, Edition. Mc Graw-Hill Book Company, Inc., New York Og London 1947. 318 Sider. Pris $ 5.00”. Nationaløkonomisk tidsskrift 87 (January 1, 1949). Accessed September 2, 2026. https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/60411.