Johnsen, E. (1964). Powell Niland, Management Problems in the Acquisition of Special Automatic Equipment, Division of Research Graduate School of Business Administration, Harvard University, Boston, 1961, 336 s., dollars 5.00. Ledelse Og Erhvervsøkonomi, 28. Hentet fra https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34182