Leach, J. A. (2006). AutoCAD 2006 instructor: A student guide to complete coverage of AutoCAD''s commands and features. McGraw-Hill.
استشهاد بنمط شيكاغوLeach, James A. AutoCAD 2006 Instructor: A Student Guide to Complete Coverage of AutoCAD''s Commands and Features. McGraw-Hill, 2006.
MLA استشهادLeach, James A. AutoCAD 2006 Instructor: A Student Guide to Complete Coverage of AutoCAD''s Commands and Features. McGraw-Hill, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.