Frey, D. (2003). AutoCAD 2004 and AutoCAD LT 2004: No experience required. San Francisco: Sybex.
Trích dẫn kiểu ChicagoFrey, David. AutoCAD 2004 and AutoCAD LT 2004: No Experience Required. San Francisco: Sybex, 2003.
Deismireacht MLAFrey, David. AutoCAD 2004 and AutoCAD LT 2004: No Experience Required. San Francisco: Sybex, 2003.
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