Schaefer, A. Ted The AutoCAD productivity book tapping the hidden power of AutoCAD A.Ted Schaefer and James L.Brittain - 2nd ed. - New Delhi Galgotia 1989 - 362p. appendx; illus; index ISBN: 940087103 Subjects--Topical Terms: Computer Software Universal Decimal Class. No.: 519.682AUTOCAD / SCH