Dyfyniad APA

Downton, A. C. (1991). Engineering the human-computer interface. McGraw-Hill Book Co..

Dyfyniad Arddull Chicago

Downton, A. C. Engineering the Human-computer Interface. London ; New York: McGraw-Hill Book Co., 1991.

Dyfyniad MLA

Downton, A. C. Engineering the Human-computer Interface. McGraw-Hill Book Co., 1991.

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