Sorby, Sheryl A. Solid modeling with I-DEAS / Sheryl A. Sorby - 2nd ed. - Upper Saddle River, NJ: Pearson/Prentice Hall, 2003 - viii, 242 p.: ill.; 29 cm. Includes index ISBN: 0131008552 Subjects--Topical Terms: Computer graphicsEngineering models--Data processingI-DEAS