Allen, L. (2007). AutoCAD: Professional tips and techniques. Indianapolis, IN: Wiley Techology Pub.
Dyfyniad Arddull ChicagoAllen, Lynn. AutoCAD: Professional Tips and Techniques. Indianapolis, IN: Wiley Techology Pub, 2007.
Dyfyniad MLAAllen, Lynn. AutoCAD: Professional Tips and Techniques. Indianapolis, IN: Wiley Techology Pub, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.