Dyfyniad APA

Hutchinson, S. E. (1990). Computers: The user perspective (2nd.ed.). Irwin.

Dyfyniad Arddull Chicago

Hutchinson, Sarah E. Computers: The User Perspective. 2nd.ed. Homewood: Irwin, 1990.

Dyfyniad MLA

Hutchinson, Sarah E. Computers: The User Perspective. 2nd.ed. Irwin, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.