JOHNSEN, E. C. West Churchman and Philburn Ratoosh, ed.: Measurement: Definitions and Theories. John Wiley and Sons, Inc., 1959. 274 s. Ledelse og Erhvervsøkonomi, [S. l.], v. 25, 1961. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/33877. Acesso em: 27 sep. 2024.