Leach, J. A. (2003). AutoCAD 2002 companion: Essentials of AutoCAD plus solid modeling. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoLeach, James A. AutoCAD 2002 Companion: Essentials of AutoCAD Plus Solid Modeling. Boston: McGraw-Hill, 2003.
Deismireacht MLALeach, James A. AutoCAD 2002 Companion: Essentials of AutoCAD Plus Solid Modeling. Boston: McGraw-Hill, 2003.
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