APA-Zitierstil (7. Ausg.)

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.