Frey, D. (2006). AutoCAD 2007 and autoCAD LT 2007: No experience required. Wiley.
Trích dẫn kiểu ChicagoFrey, David. AutoCAD 2007 and AutoCAD LT 2007: No Experience Required. Wiley, 2006.
MLA引文Frey, David. AutoCAD 2007 and AutoCAD LT 2007: No Experience Required. Wiley, 2006.
警告:這些引文格式不一定是100%准確.