Johnsen, Erik. 1964. “Ralph M. Hower, Charles D. Orth 3rd, Managers and Scientists, Division of Research, Graduate School of Business Administration Harvard University, Boston, 1963, 323 S”. Ledelse Og Erhvervsøkonomi 28 (januar). https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34198.