Leach, J. A. (2006). AutoCAD 2006 instructor: A student guide to complete coverage of AutoCAD''s commands and features. McGraw-Hill.
Chicago-tyylinen lähdeviittausLeach, James A. AutoCAD 2006 Instructor: A Student Guide to Complete Coverage of AutoCAD''s Commands and Features. McGraw-Hill, 2006.
MLA-viiteLeach, James A. AutoCAD 2006 Instructor: A Student Guide to Complete Coverage of AutoCAD''s Commands and Features. McGraw-Hill, 2006.
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