Leach, J. A., & Dyer, J. H. (2008). AutoCAD 2008 companion: Essentials of AutoCAD plus solid modeling. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Leach, James A., agus James H. Dyer. AutoCAD 2008 Companion: Essentials of AutoCAD Plus Solid Modeling. New York: McGraw-Hill, 2008.
Lua MLA (9ú heag.)Leach, James A., agus James H. Dyer. AutoCAD 2008 Companion: Essentials of AutoCAD Plus Solid Modeling. McGraw-Hill, 2008.
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