Hutchinson, S. E. (1990). Computers: The user perspective (2nd.ed.). Irwin.
Chicago-čujuhus (17. p.)Hutchinson, Sarah E. Computers: The User Perspective. 2nd.ed. Homewood: Irwin, 1990.
MLA-čujuhus (9. p.)Hutchinson, Sarah E. Computers: The User Perspective. 2nd.ed. Irwin, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.