Onstott, S. (2012). Autocad 2012 and autocad LT 2012 essentials: Autodesk official training guide. Wiley.
Dyfyniad Arddull ChicagoOnstott, Scott. Autocad 2012 and Autocad LT 2012 Essentials: Autodesk Official Training Guide. New Delhi: Wiley, 2012.
Dyfyniad MLAOnstott, Scott. Autocad 2012 and Autocad LT 2012 Essentials: Autodesk Official Training Guide. Wiley, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.