Hutchinson, S. E. (1990). Computers: The user perspective (2nd ed.). Irwin.
Cita Chicago Style (17a ed.)Hutchinson, Sarah E. Computers: The User Perspective. 2nd ed. Boston, Mass: Irwin, 1990.
Cita MLA (9a ed.)Hutchinson, Sarah E. Computers: The User Perspective. 2nd ed. Irwin, 1990.
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