JOHNSEN, E. Ronald E. Frank, Alfred A. Kuehn, and William F. Massy, Quantitative Techniques in Marketing Analysis: Text . and Readings. Richard D. Irwin, Inc., Homewood, Ill., 1962, 556 s., Dollars 7.95. Ledelse og Erhvervsøkonomi, [S. l.], v. 28, 1964. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34146. Acesso em: 17 aug. 2024.