Hartwick, J. M. (1984). The persistence of qwerty and analogous seemingly suboptimal technologies. Department of Economics, Queen's University.
Chicago-Zitierstil (17. Ausg.)Hartwick, John M. The Persistence of Qwerty and Analogous Seemingly Suboptimal Technologies. Kingston, Ontario, Canada: Department of Economics, Queen's University, 1984.
MLA-Zitierstil (9. Ausg.)Hartwick, John M. The Persistence of Qwerty and Analogous Seemingly Suboptimal Technologies. Department of Economics, Queen's University, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.