APA aipamena

Hartwick, J. M. (1984). The persistence of qwerty and analogous seemingly suboptimal technologies. Department of Economics, Queen's University.

Chicago Style aipamena

Hartwick, John M. The Persistence of Qwerty and Analogous Seemingly Suboptimal Technologies. Kingston, Ontario, Canada: Department of Economics, Queen's University, 1984.

MLA aipamena

Hartwick, John M. The Persistence of Qwerty and Analogous Seemingly Suboptimal Technologies. Department of Economics, Queen's University, 1984.