Autocad 13 Instant Reference - The Sybex Instant Reference Series Author:George Omura, Paul W. Richardson Here's a concise, alphabetically organized command reference for Windows 3.1, NT, or DOS versions of AutoCAD. Useful for beginners and experienced users alike, this book starts with an overview of new features, then highlights them throughout. Valuable tips, tables, and cross-references help you find just the information you need.