Frey, D. (2006). AutoCAD 2007 and autoCAD LT 2007: No experience required. Wiley.
Čikaški stil citiranjaFrey, David. AutoCAD 2007 and AutoCAD LT 2007: No Experience Required. Wiley, 2006.
MLA način citiranjaFrey, David. AutoCAD 2007 and AutoCAD LT 2007: No Experience Required. Wiley, 2006.
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