Omura, G. (2006). Mastering AutoCAD 2007 and AutoCAD LT 2007. Indianapolis: Wiley Pub.
Dyfyniad Arddull ChicagoOmura, George. Mastering AutoCAD 2007 and AutoCAD LT 2007. Indianapolis: Wiley Pub, 2006.
Dyfyniad MLAOmura, George. Mastering AutoCAD 2007 and AutoCAD LT 2007. Indianapolis: Wiley Pub, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.