Dyfyniad APA

Squire, E. (1980). Introducing systems design. Addison Wesley.

Dyfyniad Arddull Chicago

Squire, Enid. Introducing Systems Design. Massachusetts: Addison Wesley, 1980.

Dyfyniad MLA

Squire, Enid. Introducing Systems Design. Addison Wesley, 1980.

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