Frey, D. (2005). AutoCAD 2006 and AutoCAD LT 2006: No experience required. San Francisco: SYBEX.
Trích dẫn kiểu ChicagoFrey, David. AutoCAD 2006 and AutoCAD LT 2006: No Experience Required. San Francisco: SYBEX, 2005.
MLA citiranjeFrey, David. AutoCAD 2006 and AutoCAD LT 2006: No Experience Required. San Francisco: SYBEX, 2005.
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